Answer:
-77k - 40
Step-by-step explanation:
-4(8k + 5) - 5(9k + 4)
~Distribute both sides
-32k - 20 - 45k - 20
~Combine like terms
-77k - 40
Best of Luck!
Answer:
-77k-40
Step-by-step explanation:
Distribute:
-32k-20-45k-20
Combine like terms
-77k-40
A high school choir had a car wash to raise money. The number of trucks washed was 2 fewer than
half the total number of cars and SUVs washed. They washed twice as many cars as trucks. They
washed a total of 28 trucks and cars and SUVs.
Let T = the number of trucks, C = the number of cars, and S = the number of SUVs washed. Which
ordered triple, (T, C, S) represents the solution to the system below? Verify your answer fully in the
box provided. (5 pts.)
1 2( ) 2
2
28
T CS
C T
TCS
+= +
=
++=
A. (4, 8, 16) C. (8, 16, 4)
B. (4, 8, 12) D. (12, 6, 8)
Answer: C. (8, 16, 4)
Step-by-step explanation:
Given the following:
Let:
Trucks = T ; Cars = C ; SUVs = S
T =0.5(C + S) - 2 - - - (1)
C = 2T - - - (2)
T + C + S = 28 - - - (3)
T = 0.5(2T + S) - 2
T = T + 0.5S - 2
0 = 0.5S - 2
0.5S = 2
S = 2/0.5
S = 4
From T + C + S = 28
C = 2 T ; S = 4
T + 2T + 4 = 28
3T = 28 - 4
3T = 24
T = 24/3
T = 8
From T + C + S = 28
8 + C + 4 = 28
12 + C = 28
C = 28 - 12
C = 16
Hence, (T, C, S) = (8, 16, 4)
In Akutan, Alaska, men are 77% of the population. It is also known 11.3% of
Akutan males smoke cigars while 2.1% of Akutan females smoke cigars. One
member of the population is selected at random for a survey involving cell
phone carriers.
Find the probability that the selected subject is not male.
Answer: 0.23
Step-by-step explanation:
Given that:
Percentage population of males = 77% = 0.77
Hence,
Percentage that aren't male = ( 1 - 0.77) = 0.23
P(males) = 0.77
Hence,
P(non-males) = 1 - 0.77 = 0.23
write down 7 numbers that have a range of 10 and a mean of 12
Answer:
7 10 11 12 13 14 17
Step-by-step explanation:
this
is
the answer
7, 10, 11, 12, 13, 14, 17 are the 7 numbers that have a range of 10 and a mean of 12.
What is Statistics?Statistics is the discipline that concerns the collection, organization, analysis, interpretation, and presentation of data.
The range of a list of numbers is the difference between the largest and smallest values of that list of numbers.
The mean is the sum of the observations to the total number of observations.
The seven numbers are 7, 10, 11, 12, 13, 14, 17
Range =17-7=10
Mean=7+10+11+12+13+14+17/7
=84/7
=12
Hence, 7, 10, 11, 12, 13, 14, 17 are the 7 numbers that have a range of 10 and a mean of 12.
To learn more on Statistics click:
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Alex and Case are starting their own businesses. Alex has $52 from pre-orders and plans on selling the mittens he made for $4 each pair. Case has $35 from pre-orders and plans on selling the mittens he made $5 each pair. Which equation could you use to determine when Alex and Case will have the same amount of money?
Answer:
Equation could you use to determine when Alex and Case will have the same amount of money is [tex]52+4x=35+5x[/tex]
Step-by-step explanation:
Let x be the pairs of mittens when Alex and Case will have the same amount of money
Alex has amount before orders = $52
He will sell 1 pair of mittens = 4
He will sell x pair of mittens = 4x
So, Alex's total amount = 52+4x
Case has amount before orders = $35
He will sell 1 pair of mittens = 5
He will sell x pair of mittens = 5x
So, Case's total amount = 35+5x
ATQ
52+4x=35+5x
52-35=x
17=x
Hence the pairs of mittens when Alex and Case will have the same amount of money is 17 and equation could you use to determine when Alex and Case will have the same amount of money is [tex]52+4x=35+5x[/tex]
What does x equal? 2/7(x+4)=−6
Answer:
[tex]\boxed{x=-25}[/tex]
Step-by-step explanation:
[tex]\frac{2}{7} (x+4)=-6[/tex]
→ Multiply everything by 7 to get rid of the fraction
[tex]2(x+4)=-42[/tex]
→ Expand the bracket
[tex]2x+8=-42[/tex]
→ Minus 8 from both sides to isolate 2x
[tex]2x=-50[/tex]
→ Divide both sides by 2 to isolate x
[tex]x=-25[/tex]
What is the pythagorean thereom? And how is it used to solve triangles
Answer:
Pythagorean Thereom is the method in which finds the lengths of each side of a triangle. The formula is [tex]a^{2}[/tex] + [tex]b^{2}[/tex] = [tex]c^{2}[/tex]
Each letter in the formula defines a certain side of a triangle.
The picture shown shows the sides of each triangle and how they correspond with the formula.
This helps solve triangles to find its sum, as well as, to figure out a side depending on what is given.
What happens to spoons when they work too hard (riddle)
Answer:
They go stir crazy
:)
The answer sentence will be "They go stir-crazy"
What is additive and multiplicative inverse?Additive inverse of a number is a number added to that number such that the sum equals to zero. The multiplicative inverse of a number is a number multiplied by another such that their product is 1.
Given are the properties names coded by alphabetic letters,
The expressions with code and property are;
10) 1(3+a) = 3+a: multiplicative inverse (T)
6) 0+2b = 2b: Additive inverse (H)
2) 5x1/5 = 1: multiplicative inverse (E)
12) 1x♤ = ♤: multiplicative inverse (Y)
5) 91 = 1x91: multiplicative inverse (G)
11) 3/axa/3 =1: multiplicative inverse (O)
8) 1 = -2/7x-7/2: multiplicative inverse (S)
15) T = 1/axa: multiplicative inverse (T)
14) 0 = -5x+5x: Additive inverse (I)
3) ♤+0 = ♤: Additive inverse (R)
1) 66+0 = 66: Additive inverse (C)
9) 0 = -y+y; Additive inverse (R)
7) ↑+↓ = 0; Additive inverse (A)
13) ⍟ +0 = ⍟; Additive inverse (Z)
4) 3+(-3) = 0; Additive inverse (Y)
Hence, the sentence is "They go stir-crazy"
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what is 32.72 rounded to the nearest tenth
Answer:
32.7
Step-by-step explanation:
Two doesn't round up seven, so it just gets knocked off the end.
Use the statement for the next 2 question: "If it is hot, then it is summer." 1) write
the hypothesis.
Answer:
simply no
Step-by-step explanation:
Answer: Hypothesis is "It is hot"
The general form of a conditional is "If hypothesis, then conclusion"
You may see it as "If P, then Q". P and Q are placeholders
In this case, the conclusion is "It is summer".
The graph represents y = -4x + 7. Which statements are true about the graph?
Answer:a and e for usaprebtest
Step-by-step explanation:
Please answer ASAP!!!!
Answer:
y = -3x + 7 or y + -3x - 2
Step-by-step explanation:
hope this helps! brainliest please.
Which sum or difference is equivalent to the following expression?
Fraction: 5 minus 3 x over 5
A. 1 + three-fifths
B. 1 + start fraction 3 x over 5 end fraction
C. 1 – start fraction 3 x over 5 end fraction
D. 25 – 15x
Answer:
Which sum or difference is equivalent to the following expression?
5 minus 3 x over 5
A. 1 + three-fifths
B. 1 + 3 x over 5
C. 1 – 3 x over 5 *My answer
D. 25 – 15x
I took the test and I got it right
Zoe leaves Walmart traveling 9 mph. Just 12 hours later, Summer leaves Walmart, traveling the same
direction at 36 mph. How long until Summer catches up with and passes Zoe?
Answer:
4 hours after summer leaves she will have passes zoe
Step-by-step explanation:
What’s the expression for “seven times x is no more than 15”
At the beginning of a snowstorm, Tristan had 3 inches of snow on his lawn. The snow then began to fall at a constant rate of 1.5 inches per hour. Assuming no snow was melting, how much snow would Tristan have on his lawn 4 hours after the snow began to fall? How much snow would Tristan have on his lawn after tt hours of snow falling?
Answer:
6
Step-by-step explanation:
need help pleasee asap
Answer:
12. 24
13. -5
14. -5
15. -40
16. 5
order from least to greatest
Answer:
-26/5, -5.17, root 33, 37/6
Step-by-step explanation:
Answer:
[tex]-5.17, -\frac{26}{5}, \sqrt{33} , \frac{37}{6}[/tex]
Step-by-step explanation:
= -5.17
26 / 5 = -5.2
[tex]\sqrt{33}[/tex] = 5.745
37/6 = 6.167
Zachary purchased a computer for 1100 on a payment plan. 4 months after he purchased the computer, his balance was $755. Five months after he purchased the computer, his balance was $640. What is an equation that models the balance b after m months. What does the slope signify is zacharys equation?
Answer:
Model is
b = 115m + 65
The slope represents the amount of balance offset per month
Step-by-step explanation:
Here, we want to model an equation.
The equation to model will be in the form;
y = mx + c
we have the following points to consider
The points are in the form;
(number of months, balance)
(m , b)
So the points we have are;
(4,755) and (5,640)
So the slope will be ;
(y2 -y1)/(x2-x1) = (755-640)/(5-4) = 115
So the equation will be;
b = am + c
where a is the slope and c is the y intercept
we already have the slope
so equation becomes;
b = 115m + c
let’s get the y-intercept
we can get the y-intercept by any of the points;
That would be; let’s use (5,640)
640 = 5(115) + c
640 = 575 + c
c = 640 -575
c = 65
So the equation of the model is;
b = 115m + 65
The slope represents the balance per month
Solve for x in the figure below.
3x
H
4x+50
W
Answer:
x = 25
Step-by-step explanation:
3x + 4x + 5 = 180
7x + 5 = 180
- 5 - 5
7x = 175
x = 25
3x^2+9x+6=0
Solve for quadratic formula
Answer:
[tex]x=-1 ,-2[/tex]
Step-by-step explanation:
Quadratic Formula: [tex]x=\frac{-b \pm \sqrt{b^2-4ac} }{2a}[/tex]
Step 1: Define
3x² + 9x + 6 = 0
a = 3
b = 9
c = 6
Step 2: Substitute and Evaluate
[tex]x=\frac{-9 \pm \sqrt{9^2-4(3)(6)} }{2(3)}[/tex]
[tex]x=\frac{-9 \pm \sqrt{81-72} }{6}[/tex]
[tex]x=\frac{-9 \pm \sqrt{9} }{6}[/tex]
[tex]x=\frac{-9 \pm 3 }{6}[/tex]
[tex]x=\frac{3(-3 \pm 1) }{6}[/tex]
[tex]x=\frac{-3 \pm 1}{2}[/tex]
[tex]x=\frac{-2}{2} ,\frac{-4}{2}[/tex]
[tex]x=-1 ,-2[/tex]
If "a" varies directly as "b" and inversely as "c". If a=16 when b=12 and c=6, find "a" when b=28 and c=4. *
Answer:
When b = 28 and c = 4, then a = 56
Step-by-step explanation:
We need to write the equation first
This is an example of a combined variation
if a varies directly as b and inversely as c;
then a = bk/c
where k is the constant of proportionality
We find k first;
16 = (12 * k)/6
k = (6 * 16)/12 = 8
We now want to find a
a = kb/c
a = (8 * 28)/4 = 7 * 8 = 56
What is the result when x^3+2x^2– 11x + 8 is divided by x - 1?
Answer:
result is x^2+3x-8 sorry for the photo quality
can someone help me plzz
Step-by-step explanation:
13) +1
14). - 1
15). +1
16). - 1
17). +1
18). Negetive_positive
Please help me with this question, thanks.
33rd term 189.6, 172.3, 155
Answer:
[tex]a_{33}[/tex] = - 364
Step-by-step explanation:
There is a common difference between consecutive terms. that is
d = 172.3 - 189.6 = 155 - 172.3 = - 17.3
This indicates the sequence is arithmetic with n th term
[tex]a_{n}[/tex] = a₁ + (n - 1)d
where a₁ is the first term and d the common difference
Here a₁ = 189.6 and d = - 17.3 , thus
[tex]a_{33}[/tex] = 189.6 + (32 × - 17.3) = 189.6 - 553.6 = - 364
What is the value of y?
A. 54
B. 73
C. 63
D. 126
Answer:
54
Step-by-step explanation:
i think it's right im sorry if not
Answer:
63
Step-by-step explanation:
I just did it
Can someone please help me with my homework???
Answer:
Step-by-step explanation:
Yes I would be glad to help you
what expression is equivalent
6(3+6x)
Answer:
i think maybe 6*9x
Step-by-step explanation:
Step-by-step explanation:
So this is how it works
The bracket represents times. So, you have to times 6 to 3 and also 6x
Next, write down the values after times it. You will get 18+36x
NOTE: This is for expansion only
For factorisationBring the x to your right and bring the numbers to your left. Then calculate the value and that's your answer
Hope this is correct and helpful
HAVE A GOOD DAY!
Eric goes to the grocery store to buy apples so that he can bake an apple pie He can buy 2 apples for $150 or 6 apples
for $4.50
Answer:
mm
Step-by-step explanation:
,l
Answer:
6 apples ofc
Step-by-step explanation:
Custom steel products also makes staircase frames like those shown here. How would the pattern you described be shown in a table? Graph? Equation?
Answer:
Graph would be the most reasonable.
Step-by-step explanation:
Hope I helped, good luck!<3!!