Answer:
a = 6 and b = 36
Step-by-step explanation:
Set up equations:
b = 30 + a
b = 6a
Subtract the two equations:
b = 6a
- (b = 30 + a)
5a - 30 = 0
5a = 30
divide both sides by 5
a = 6
Plug a = 6 into the original equation:
b = 30 + 6
b = 36
you could also do:
b = 6 * 6
b = 36
Answer:
Step-by-step explanation:
It costs $8 per hour to rent a bike. Niko graphs this relationship using x for number of hours and y for total cost in dollars. Write an ordered pair that is a point on the graph of the relationship
3. A rectangle with vertices located at (-3,4) and (5, 4) has an area of 32 square units. Determine the location of the
other two vertices.
Re-write 12% as a reduced fraction
Answer:
12/100= 3/25
Step-by-step explanation:
12 is converted to 12/100 so it changes to a fraction. The fraction is not in the lowest terms. But, if you Reduce the fraction to 12/100 to the lowest terms, result in the fraction is 3/25.
There are 225 pieces of cereal and 15 marshmallows in a bowl of cereal. What is the ratio of cereal pieces to marshmallow pieces?
if quick will mark brainliest
Answer:
17.5, I believe.
Hope that helps!
Step-by-step explanation:
Answer:0
Step-by-step explanation:
If log103 ~ 0.4771,
evaluate log100.0003.
Give your answer to four decimal places.
WILL GIVE BRAINLIEST!!!
Answer:
Step-by-step explanation:
log₁₀0.0003 = log₁₀(3 × 10⁻⁴)
= log₁₀3 + log₁₀(10⁻⁴)
= log₁₀3 + (-4)
≈ 0.4771 - 4
= -3.5229
If the value of log₁₀3 is 0.4771. Then the value of the log₁₀0.0003 will be negative 3.5229.
What is a logarithm?Exponents can also be written as logarithms. A number base logarithm is similar to some other number. It is the exact inverse of the exponent expression.
The logarithm is given below.
log₁₀3 ≅ 0.4771
Then the value of log₁₀0.0003 will be
This can be written as
log₁₀0.0003 = log₁₀ (3 x 10⁻⁴)
We know the property of the logarithm, then we have
log₁₀ (ab) = log₁₀ a + log₁₀ b
log₁₀ aⁿ = n log₁₀ a
log₁₀ 10 = 1
Then we have
log₁₀ (3 x 10⁻⁴) = log₁₀ 3 + log₁₀ 10⁻⁴
log₁₀ (3 x 10⁻⁴) = 0.4771 - 4 log₁₀ 10
log₁₀ (3 x 10⁻⁴) = 0.4771 - 4 x 1
log₁₀ (3 x 10⁻⁴) = 0.4771 - 4
log₁₀ (3 x 10⁻⁴) = -3.5229
More about the logarithm link is given below.
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3) An air conditioner has a marked price of $350. It is placed on sale at 12% off. What are the
discount and the sale price?
Show work please !
Answer:
12/100 = x/350
4200 = 100x
4200/100 = 100x/100
42 = x
350 - 42 = 308
the sale price is $308
the discount is $42
HELP PLSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS PLSS I BEFFF
The population of a city increases by 1.5% per year. If this year's population is
288,000, what will next year's population be, to the nearest individual?
Answer: 292,320
Step-by-step explanation:
Find the increase, 1.5% of 288,000:
1.5/100 = 0.015
288,000 * 0.015= 4,320
Add the increase to the current population:
288,000+4,320= 292,320
A school club spends $75 on supplies to set up a car wash fundraiser. The students are going to charge $6.00 per car. Write a linear model in the form y=mx+b where y represents the amount of profit the students earn for washing x number of cars.
Answer:
Y=6x-75
Step-by-step explanation:
If you take the beginning amount spent which is $75 you would want that on the graph to be in the negatives. With it starting in the negatives it will show you whether the amount of cars (x) will cause a profit or a deficit.
For instance, say they washed 7 cars (x=7). You would take 6 and multiply it by 7 to get 42. Then you would take 42 and take away 75 to find the profit/deficit. 42-75= -33
This shows that washing 7 cars will cause them to lose $33.
If you take another situation where they wash 15 cars (x=15). In this case they would earn a total of $15.
I need help i apperciate it for the help
I need some help with khan academy review! It’s due in an hour! I have a photo attached.
Answer:
3 + 1.20c ≥ 13.50
Step-by-step explanation:
Jamie must complete at least 9 chores to have enough money to buy a CD player.
Use this definition to find l'(a) at the given number a.
f(x) = ✓ 3x + 1,
a = 8
12 students need to drink a total of 3 litres of water over the course of an activity.
How much water would be needed for 20 students during the same activity?
Give your answer in litres.
[2 ma
Answer
litres
Answer:
5 liters!
Step-by-step explanation:
For every 4 students, there's 1 liter of water needed.
S = Students - L = Liters
4S = 1L
8S = 2L
12S = 3L
16S = 4L
20S = 5L
helpppppppppppppppppp
Answer:
C, 2/5
Step-by-step explanation:
.
Answer:
1/5 is the answer because it will land on a fifth of the circle
Find the value of each variable.
A. x = 38, y = 76
B. x = 52, y = 76
C. x = 38, y = 104
D. x = 52, y = 104
Please answer these questions on circumference for BRAINLIEST and extra points if correct! Show you work please
I attached the document with the answers and work with the formulas. Since the formulas and fractions don't work very well with this site (especially the pi symbol, they should fix that).
:)
Help me please !!!!!!!!
Answer:
6%
Step-by-step explanation:
what is the answer of 3x+235+237
Answer:
3x + 472
Step-by-step explanation:
Answer:
3x + 472
Step-by-step explanation:
We have the expression 3x + 235 + 237 and are asked to find the answer.
We are not solving for x, neither are we doing anything complicated, we need to focus on like terms, which are certain numbers having different symbols, in which they can only be added with the numbers with the same symbols as them.
In this equation, we have two terms, variables and constant. We can only add the constants because once again, you cannot add two terms that don't have the same symbol.
Therefore :
3x + 235 + 237
235 + 237
472.
The answer is 3x + 472
which shows 2÷3 written as a fraction? (options) a. 2/3 b. 3 1/2 c. 3/2 d. 2 1/3
Answer:
A. 2/3
Step-by-step explanation:
Fraction is another way to divide , So in some math problems they want you to either flip the fraction or divide the numbers .
Option A is correct, the expression 2÷3 written as a fraction is 2/3.
What is Fraction?A fraction represents a part of a whole.
We have to write 2÷3 as a fraction.
Two divided by three.
We have to split the number two by three parts.
We know that any division expression can be written as a fraction, the numerator is a part and denominator is a whole.
Two is the numerator and three is the denominator.
The numerator represents the part and three represents the whole.
This we can write in fraction as 2/3.
Two by three is the fraction form of two divided by three.
Where as [tex]3\frac{1}{2}[/tex], is not a fraction, it is a mixed number.
3/2, is not equivalent to 2 ÷ 3, it represents the fraction one and a half and [tex]2\frac{1}{3}[/tex] is not equivalent to 2 ÷ 3, it represents the mixed number two and one-third.
Hence, Option A is correct, the expression 2÷3 written as a fraction is 2/3.
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In a bowling class, the students are organized into teams. The number of students in the class is used to calculate how many teams will be formed.
Answer:
Error
Step-by-step explanation:
Unfinished question
The Rileys are buying a home that costs $250,000. They are paying 3% in closing costs and 12% for a down payment. Complete the statement. The Rileys will pay a total of in costs for the closing costs and down payment on their mortgage.
Answer:
37,500 and non recurring
Step-by-step explanation:
The Riley's will pay a total of $7,500 in costs for the closing costs and $30,000 down payment on their mortgage.
What is percentage?Percentage is defined as a given part or amount in every hundred. It is a fraction with 100 as the denominator and is represented by the symbol "%".
Given that, Rileys are buying a home that costs $250,000.
12% for a down payment
So, down payment is
12% of 250,000
= 12/100 ×250,000
= 12×2500
= $30,000
They are paying 3% in closing costs
3% of 250,000
= 3/100×250,000
= $7,500
Therefore, the Riley's will pay a total of $7,500 in costs for the closing costs and $30,000 down payment on their mortgage.
To learn more about the percentage visit:
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Find the area of the composite figure
Area of the triangle=
Area of rectangle A=
Area of rectangle B=
Total Area of composite=
Answer:
Area of the triangle = 31.25 yd²
Area of rectangle A = 50 yd²
Area of rectangle B = 48.75
Total Area of composite = 130 yd²
Step-by-step explanation:
✔️Area of the triangle = ½*b*h
b = 10 yd
h = 6.25 yd
Area of the triangle = ½*10*6.25 = 31.25 yd²
✔️Area of rectangle A = L*W
L = 10 yd
W = 7.5 - 2.5 = 5yd
Area of rectangle A = 10*5 = 50 yd²
✔️Area of rectangle B = L*W
L = 7.5 yd
W = 6.5 yd
Area of rectangle B = 7.5*6.5 = 48.75 yd²
✔️Total Area of Composite = 31.25 + 50 + 48.75 = 130 yd²
-2q + 8 = -q
solve for Q
Ella has $46 to spend at the State Fair. Admission is $9 and each ride costs $3. Enter an inequality to find the possible numbers of rides she can go on.
The inequality that represents the situation is
+
n
(select)
.
Answer:
she can go on 12 rides leavig 0.3 approx dollars
Step-by-step explanation:
46-9 is 37 and 37 by 3 is 12.3333 approx so she can only go on 12 rides
Answer:
6 + 3x ≤ 40
x≤11
Step-by-step explanation:
6 + 3x ≤ 40
-6 -6
3 x ≤ 34
3 x ≤ 3
x ≤ 11
Dylan solved an inequality to determine the amount of lemonade, in cups, that fit in a cooler already containing ice and lemon wedges. His solution is graphed on the number line below.
A number line going from 14 to 22. A closed circle is at 19. Everything to the left of the circle is shaded.
How should the graph be interpreted? Select two options.
at most 19 cups
19 cups or less
more than 19 cups
a minimum of 19 cups
no fewer than 19 cups
Answer:
A and B
Step-by-step explanation:
Got it right hope this helps
Answer:
a and b
Step-by-step explanation:
What are the dependent and independent
variables?
Answer:
The dependent variable depends on the value of some other number also known as the independent variable. Another way to put it is the dependent variable is the output value and the independent variable is the input value. So for y=x+3, when you input x=2, the output is y = 5.
The images are some examples.
Each of 7 students reported the number of movies they saw in the past year. Here is what they reported. 15,11,15,18,13,4,5. Find the mean of movies they saw. PLEASE HURRY!! Will mark BRANIELST
Answer:
11.6
Step-by-step explanation:
Add all numbers together and divide by 7.
Martha made a purchase for $70.20 including 8% sales tax.
What was the total before tax?
Answer:
64.58
Step-by-step explanation:
100%-8%=92%
70.20*92%=64.58
Luis brought x cans of cola to the party, Faith brought d cans of cola, and De Shawn brought h cans of cola. How
many cans of cola did they bring altogether?
Answer:
Total number of cans = x + d + h
Step-by-step explanation:
Given:
Luis brought = x cans of cola
Faith brought = d cans of cola
De Shawn brought = h cans of cola
Find:
Total number of cans
Computation:
Total number of cans = Luis brought + Faith brought + De Shawn brought
Total number of cans = x + d + h
