2 years ago

1. Which expression is equivalent to (y + 7) - (-8y + 14)?

Mathematics

1 answer:

zimovet [89]2 years ago

5 0

Answer:

Step-by-step explanation:

(y + 7) - (-8y + 14) = y + 7 + 8y - 14 = 9y - 7

You might be interested in

21008 rounded to the nearest ten thousands

o-na [289]

The nearest ten thousand is 20,000

6 0

3 years ago

What is the missing angle? 133, 26 , ?

SCORPION-xisa [38]

21 because a triangle is always going to equal 180 so add those then subtract and it’s 21

7 0

3 years ago

A piece of blue yarn is 5/ 3/7 yards long. A piece of pink yarn is 5 times as long as the blue yarn. How much longer is the pink

MaRussiya [10]

Answer:

27 1/7

Step-by-step explanation:

Multiply 5×5=25 and afterwards multiply 3/7×5=2 1/7

8 0

3 years ago

Match the equation with its corresponding solution for x. 6= -1/3x+5

KiRa [710]

Answer:

x=-3

Step-by-step explanation:

7 0

3 years ago

4. At a school fair, 30% of the pies sold had cheese filling, 25% had beef filling and the remaining 90 pies had potato filling.

astra-53 [7]

Answer:

Step-by-step explanation:

a) Percentage of potato filling = 100 - (30 + 25) = 100 - 55 = 45 %

b) Let the number of pies sold = x

45% of x = 90

$\dfrac{45}{100}*x=90\\\\\\x=90*\dfrac{100}{45}\\\\\\x=2*100\\$

Number of pies = 200

c) Number of cheese filling = 30% of 200

$=\dfrac{30}{100}*200\\\\= 30*2\\\\\\= 60$

Number of beef pies = 25% of 200

$=\dfrac{25}{100}*200\\\\\\=25*2\\\\= 50$

Difference = 60 - 50 = 10

There are 10 more cheese pies than beef pies.

6 0

2 years ago