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KengaRu [80]
3 years ago
6

I’ll give brainliest

Mathematics
1 answer:
Alex3 years ago
8 0

Answer:

84

Step-by-step explanation:

x = number of girls

The total for boys is 2x * 81 and for girls it would be 90x

Therefore, the equation goes like this:

2x * 81 + 90x

Then simplify, and set to equal 3x...

3x = 252

Which is the same as

x = 84

Thank me later :)

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Writ the recurring decimal as 0.15 as a fraction in it's simplest form​
Tema [17]

Answer:

3/20

Step-by-step explanation:

0.15 = 15*100/1*100

= 15/100

= 3/20

6 0
3 years ago
The property of inequality states whatever is done to one side of the equation must be done to the other. true or false?
weqwewe [10]
This is true. The word equal in equality will help, each side of the equation in the in(equal)ity should be done the same.
3 0
4 years ago
Apples cost $0.75 per pound and bananas cost $1.05 per pound.
dedylja [7]

Answer:

The baker bought 8 pounds of apples and 4 pounds of bananas.

Step-by-step explanation:

a+b=12.

0.75a+1.05b=10.20

First, multiply 2 my 10.

75a+105b=1020.

Then multiply 1 by 75.

75a+75b=900.

Then subtract.

75a+105b=1020

75a+75b=900.

75a-75a+105b-75b=1020-900

30b=120

b=4

Substitute into (1)

a+4=12

a=8.

Hope this helps :)

3 0
3 years ago
Bruce walks 3/4 mile in 1/5 hour. What is his speed in miles per hour? (label your answer mph) * worth 25 points and brainlyiest
LenKa [72]
The answer to this question is 3.75
3 0
3 years ago
I WILL GIVE BRAINLIEST!!
Stels [109]
Hi there!

The answer is A. The constant 900 represents the amount Kayla's bakery earns in a particular month when there are no online orders. 

Since 900 is part of the cost that is added to the amount of money Kayla makes per online order (x), it must represent the amount Kayla's bakery makes without online orders. 

Hope this helps!
5 0
3 years ago
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