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3 years ago

If 7x + 11 = 39, then 7x = 28. Name property

Mathematics

1 answer:

Bogdan [553]3 years ago

5 0

Answer: Subtraction Property of Equality

Step-by-step explanation: The Subtraction Property of Equality tells us that

we can subtract the same quantity, or equal quantities,

from both sides of an equation.

To get from the statement 7x + 11 = 39 to 7x = 28,

we subtract 11 from both sides to get 7x = 28.

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What is the reciprical of 200 and 450

Bad White [126]

Answer:

Part a) $\frac{1}{200}$

Part b) $\frac{1}{450}$

Step-by-step explanation:

we know that

A reciprocal of a rational number $\frac{p}{q}$ is obtained by changing the numerator and denominator, so the numerator becomes the denominator and the denominator becomes the numerator obtaining $\frac{q}{p}$

Part a) we have

200

we know that

the given number can be expressed as $\frac{200}{1}$

changing the numerator and denominator

The reciprocal is equal to $\frac{1}{200}$

Part b) we have

450

we know that

the given number can be expressed as $\frac{450}{1}$

changing the numerator and denominator

The reciprocal is equal to $\frac{1}{450}$

3 0

3 years ago

Sharon bought a circular rug

romanna [79]

Answer:

50.24 square feet

Step-by-step explanation:

Area of a circle = πr2

= π × 4^2

= 50.26 square feet

7 0

3 years ago

A painter earns $15 per hour. What is the minimum number of hours he must work to earn at least $200? write an inequality to rep

Amanda [17]

14 hours.......200 divided by 15 is 13.3333333 so your answer is 14

hope i could help sorry if i get it wrong

3 0

3 years ago

Find the value of x and y? A) x=15 y=12 B) x=14 y=11 C) x=14 y=12 D) x=15 y=11

Alina [70]

im pretty sure the answer is c.

6 0

3 years ago

The volleyball team and the wrestling team at Stamford High School are having a joint car wash today,

Sedbober [7]

Answer:

Money raised by each team = 94 + 11 = $105

Number of cars washed = 11

Step-by-step explanation:

Money already present with volleyball team = $50

Money raised by washing each car by volleyball team = $5

Let the number of cars washed = $x$

Money raised by washing cars = $5 $x$

Money already present with volleyball team = $94

Money raised by washing each car by volleyball team = $1

Money raised by washing cars = $1 $x$ = $ $x$

Given that, both the teams have raised same amount of money:

$50+5x=94+x\\\Rightarrow 44=4x\\\Rightarrow x=11$

Money raised by each team = 94 + 11 = $105

Number of cars washed = 11

4 0

3 years ago