Answer:
14
Step-by-step explanation:
when you multiply and do the absolute value thats what you get
In a two-digit number, the tens digit is 5 less than the units digit. The number itself is five more than three times the sum of its digits. What is the number?
The tens digit is 3 and the unit digit is 8. So, the number is 38.
Important information:
The tens digit is 5 less than the unit digit.The number itself is five more than three times the sum of its digits. System of equations:Let x be the tens digit and y be the unit digit.
The tens digit is 5 less than the unit digit.
[tex]x=y-5[/tex] ...(i)
The number itself is five more than three times the sum of its digits.
[tex]10x+y=3(x+y)+5[/tex]
[tex]10x+y-3x-3y=5[/tex]
[tex]7x-2y=5[/tex] ...(ii)
Using (i) and (ii), we get
[tex]7(y-5)-2y=5[/tex]
[tex]7y-35-2y=5[/tex]
[tex]5y=40[/tex]
[tex]y=8[/tex]
Substitute this value in (i).
[tex]x=8-5[/tex]
[tex]x=3[/tex]
Therefore, the number is 38.
Find out more about 'System of equations' here:
https://brainly.com/question/20923163
**A lady came to the market to sell eggs. Her first customer bought 1 2 of all her eggs and 1 2 of an egg. Her second customer bought 1 2 of all the remaining eggs and 1 2 of an egg. Finally, a third customer bought 1 2 of all of her remaining eggs and 1 2 of an egg. At this point she had sold all of the eggs she had brought to the market so she went home. How many eggs did the lady have when she first came to the market?
Answer:
She had 7 eggs when first went into the market
Step-by-step explanation:
Three times multiply 1/2 and minus 1/2 until you get zero.
7 x 1/2 - 1/2 = 3
3 x 1/2 - 1/2 = 1
1 x 1/2 - 1/2 = 0
Answer:
7
Step-by-step explanation:
10. (7, 2) and (3.-2)
Find the slope
Answer:
1
Step-by-step explanation:
m=y2-y1/x2-x1
(-2)-2=(-4)
3-7=(-4)
-4/-4=1
hope this helps :3
if it did pls mark brainliest
What is the radius of a circle if the diameter is 60 meters? (just type in your answer as a number only)
Answer:
30
Step-by-step explanation:
Radius is half of the diameter.
katiyln and lewis share sweets in the ratio 7:1 if katliyn geta 21 sweets how many does lewis get
Answer:
Step-by-step explanation:
Given Katiyln and lewis share sweets in the ratio =7:1
katliyn gets= 21 sweets
share of katiyln sweet =7x
share of Lewis sweet =X
So 7x=21 given
X=21/7
X=3
So Lewis gets x =3 sweets.
A set of average city temperatures in October are normally distributed with a mean of
20.
6
∘
C
20.6
∘
C20, point, 6, degrees, start text, C, end text and a standard deviation of
2
∘
C
2
∘
C2, degrees, start text, C, end text.
What proportion of temperatures are between
1
8
∘
C
18
∘
C18, degrees, start text, C, end text and
20.
6
∘
C
20.6
∘
C20, point, 6, degrees, start text, C, end text?
Answer:
0.4032
Step-by-step explanation:
Which congruency statements could be correct for the figures? Check all that apply. MNOP ≅ STUV MNPO ≅ TSVU NPOM ≅ VUTS OPNM ≅ TUVS PONM ≅ UTSV
Answer:
The answers are C and D
Step-by-step explanation:
Answer:
c and d
Step-by-step explanation:
have a wonderful day
Make x the subject of formula x²/a²+y²/b²=1
Answer:
x = ± [tex]\sqrt{\frac{a^2b^2-a^2y^2}{b^2} }[/tex]
Step-by-step explanation:
Given
[tex]\frac{x^2}{a^2}[/tex] + [tex]\frac{y^2}{b^2}[/tex] = 1
Multiply through by a²b² to clear the fractions
b²x² + a²y² = a²b² ( subtract a²y² from both sides )
b²x² = a²b² - a²y² ( divide both sides by b² )
x² = [tex]\frac{a^2b^2-a^2y^2}{b^2}[/tex] ( take the square root of both sides )
x = ± [tex]\sqrt{\frac{a^2b^2-a^2y^2}{b^2} }[/tex]
In formula x²/a²+y²/b²=1
Value of x as subject, x = ± [a√(b² - y²)]/b
What is equation?Equations are mathematical statements containing two algebraic expressions on both sides of an 'equal to (=)' sign. It shows the relationship of equality between the expression written on the left side with the expression written on the right side.
Given equation,
x²/a² + y²/b² = 1
moving y²/b² to right side
x²/a² = 1 - y²/b²
multiplying a² on both sides
a². x²/a² = a². 1 - a². y²/b²
Simplifying
x² = a² - a²y²/b²
x = ± √(a² - a²y²/b²)
x = ± a√(1 - y²/b²)
x = ± [a√(b² - y²)]/b
Hence, value of x = ±[a√(b² - y²)]/b in formula x²/a² + y²/b² = 1
Learn more about equation here:
https://brainly.com/question/1529522
#SPJ2
Simply the expression (4-2i)-(-1+3i)
Answer:
224
Step-by-step explanation:
help? ill mark brainlest
Answer:
Step-by-step explanation:
is x ≤ -19 for inequality notation
Jill saw three small boxes and one large box of oranges for a total cost of $29 Bethany saw three small boxes and four large boxes for a total of 71 in the cost of a small box in a large box of oranges
Answer: Small box = $5
Large box = $14
Step-by-step explanation:
Let the cost of a small box be a
Let the cost of a large box be b
The scenario in the question can be modelled into an equation as:
3a + b = 29 ....... equation i
3a + 4b = 71 ....... equation ii
Subtract equation ii from equation I
-3b = -42
b = 42/3
b = 14
Cost of large box = $14
We put the value of b into equation I
3a + b = $29
3a + $14 = $29
3a = $29 - $14
3a = $15
a = $15/3
a = $5
Cost of small box = $5
first correct answer gets brainliest
Find the slope of the line that passes through the pair of points. (0, 5) and (6, 2)
-2
2
-1/2
1/2
Answer:
the third one -1/2
Step-by-step explanation:
hxudcufj ydhvhdcudfib
Help!!!!! Using the elimination method, what can you multiply the first equation by in order to eliminate "x"?
A. -4
B. 4
C. 5
D. 3
Which of the following steps will speed up the reaction between a baking soda solution and a calcium chloride solution in a beaker?
Keep the beaker in a freezer.
Keep the beaker in sunlight.
Pour the solutions into a flat dish.
Pour the solutions into a narrow test tube.
Answer: Indeed It is b
Step-by-step explanation:
What is the slope of the line that passes through the pair of points? (4.7).(7,-2)
Answer:
-3 i hope this helps :)
Step-by-step explanation:
(4,7) (7,-2)
x1 y1 x2 y2
-2 - 7 = -9 = -3
7 - 4 3
Find the measurement of 1 and 2
Answer: 1 is 120 and 2 is 60
Step-by-step explanation:
Identify the terms and like terms in the expression.
1. 3x + 4 – 7x - 6
Terms: 3x, 4, –7x, –6
There are two kinds of like terms:
3x and –7x
4 and –6
How much do you need to subtract from 87/10 to make 8
Answer:
i feel like you need 76 from the 87
Step-by-step explanation:
Answer:
7/10
Step-by-step explanation:
hope this helpss!!!!!
colin rolls a fair dice 18 time, how many times would colin expect to roll an odd number?
Answer:
9
Step-by-step explanation:
a normal dice is 6 sides
half of 18 is 9
50% for odd and even
Answer:
9 times
Step-by-step explanation:
Because you have an equal chance of rolling an odd or even number on the die. So half of 18 is 9.
Have a great day, would love it if you would mark me brainliest!
You exercise 24 hours each month for a year how many hours did you exercise by the end of the year you may be able to do the math mentally thanks to expand notation and the distributive property
Please help answer with the calculation with distribution and without distribution.
Answer:
288 hours
Step-by-step explanation:
So you have 24 per month. so month can be represented by x.
24x= y
Y is the amount of hours.
One year is 12 months. so plug 12 into x
24(12) =y
y= 288
What are the answers for parts A and B?
Answer:
a) See attachment
b) P has coordinates of (5,7)
Step-by-step explanation:
2(x+5) = ?
What the answer to this question
Answer:
2x+10
Step-by-step explanation:
Expand by distributing terms.
2x+2×5
Simplify 2x5 to 10
answer 2x+10
HELP PLEASEEE I NEED HELP QUICK
Which of the following are properties of a perfect square trinomial? Select all
that apply.
A. The first and third terms must be perfect squares.
B. Neither of the perfect
squares can have a minus sign.
C. If the perfect square terms are A2 and B2 then the other term
must be 2 AB or -2AB.
D. None of the above is a property of a perfect square trinomial.
Answer:
C) If the perfect square terms are A^2 and B^2 and other terms must be 2 AB and -2AB
Step-by-step explanation:
As,
[tex](a^2+2ab+b^2)=(a+b)^2\\(a^2-2ab+b^2)=(a-b)^2[/tex]
Answer:
A, B and CStep-by-step explanation:
The Perfect Squares are the squares of the integers
Perfect square trinominal is: a² ± 2ab + b² {which is (a±b)²}
So:
The first and third terms must be perfect squares and neither of the perfect squares can have a minus sign and If the perfect square terms are A2 and B2 then the other term must be 2AB or -2AB
Frog and Toad decided to meet. Their houses are 120 ft apart. They start hopping towards each other at a speed of 2 ft/min and 3 ft/min, respectively. How long it will take until they are going to be 5 feet apart? PLS HELP ME ASAP
Answer:
24
Step-by-step explanation:
no explanation, I'm very sorry!
negative 7 minus (negative 4)=
-7 - -4 = -3
Hope this helps
Can I get help ASAP ... please
Answer:
the answer is D I'm sorry if it wrong
Tommy and 6 of his friends brought 12 1/4 pounds of Jolly Ranchers $1.20 a pound. If the cost of the Jolly Ranchers is divided evenly among Tommy and his 6 friends, how much will each person pay? (Help me please ;-;)
Answer:
$2.10
Step-by-step explanation:
To find the total cost, multiply.
12.25*1.20 = 14.7
Tommy and 6 of his friends means 7 people.
Cost per person will be:
14.7/7 = 2.1
Solve the system of equations.
9x + 4y = 6
9x + 5y = -33
X =
y =
Answer x= 18 y=-39
Step-by-step explanation:
Solve the following eqation
34 + 12x =3x - 22
Answer:
x = - 6.22 or - 56/9
Step-by-step explanation:
Step 1:
34 + 12x = 3x - 22 Equation
Step 2:
12x = 3x - 56 Subtract 34 on both sides
Step 3:
9x = - 56 Subtract 3x on both sides
Step 4:
x = - 56 ÷ 9 Divide
Answer:
x = - 6.22
Hope This Helps :)
If a ∥ b and e ∥ f, what is the value of y?
87
88
91
92
Answer:
88 i believe
Step-by-step explanation:
Answer:
92
Step-by-step explanation:
Angle (x+1) is equal to 92 degrees, and x equals 91. If x equals 91, then (x+1) equals 92. (x+1) and angle y are equal angles, so therefore, you can determine that angle y is equal to 92 degrees.
-I got the question right on the test
Hope this helps!
