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KatRina [158]
3 years ago
12

What is the value of a in the equation 5a-10b=45 when b=3

Mathematics
1 answer:
SIZIF [17.4K]3 years ago
6 0

10x3= 30

45-30= 15

5x?= 15 or 15/5

a= 3

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A deli sells a sandwich spread for 6.4per pound. How much do you need to pay for 24 ounces of spread?
Dafna1 [17]

Answer:

You have to pay 9.6.

Step-by-step explanation:

In order to find the answer, first you have to consider that 1 pound is equal to 16 ounces and with that information, you can use a rule of three to find the pounds that 24 ounces represent:

1 pound → 16 ounces

    x       ← 24 ounces

=(24*1)/16=1.5

Now that you know, that 24 ounces are equal to 1.5 pounds you can multiply the price per pound for the number of pounds to find the amount that you need to pay:

6.4*1.5=9.6

According to this, the answer is that you have to pay 9.6.

5 0
3 years ago
How do I solve this problem step by step
Aleks04 [339]

Answer:

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Step-by-step explanation:

You’re going to break apart radical 28 into square root of 4 and square root of 7.

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Radical- is square root sign

6 0
3 years ago
which expression is equivalent to the given expression after using the distributive property 6*13+6*7
egoroff_w [7]

Answer: 6*(13+7) = 60


Step-by-step explanation:

6*13+6*7

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5 0
3 years ago
If 2 pounds of bananas cost $1.89, what is the cost per pound? Show your work
OLEGan [10]
You can set up an expression where p = the pounds of bananas.
With that information, 2p =$1.89
To figure out the cost per pound, you want the cost of 1 p. Therefore, you divide both sides by 2. 
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p = $0.945
(since it is money you normally round to two decimal places so you would say $0.95 or 95 cents)
6 0
3 years ago
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Aliun [14]

Answer:

2x-10y=100

-8xy=100

xy=12

3 0
3 years ago
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