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4 years ago

Solve the equation. -b=8

Mathematics

1 answer:

Fantom [35]4 years ago

8 0

Answer:

b= -8

Step-by-step explanation:

the only thing we need to do is isolate b variable since it has a -1 , hence divide both sides by -1

-b=8

-b/-1 = 8/-1

b = -8

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You first find its intercepts: the x intercept is (5/3,0) and the y intercept is (0,5) (just plot those points). Then make the line connecting those 2 points!

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3 years ago

A bug walking on the circular rim of a flower

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3 years ago

Divide 28 cans of soda into two groups so the ratio is 3 to 4.

Debora [2.8K]

Answer:
The first group would have 12 cans
The second group would have 16 cans

Explanation:
We know that the total number of cans in 28 and that the ratio between the two groups is 3:4

This means that:
If the first group has 3x cans, then the second group would have 4x cans.

Now, we would solve for x:
3x + 4x = 28
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x = 4 cans

Therefore:
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Hope this helps :)

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4 years ago

If twice Mary’s age is decreased by 7 is the same as her age increased by ten. How old is Mary? Be sure to use the four-step pro

oee [108]

Answer: 17 years

Step-by-step explanation:

Let mary's age be m

2m-7 = m+10

Subtracting m from both sides:

m-7 = 10

Therefore, m = 17

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2 years ago

Find the balance in an account when $500 is deposited at 4% interest compounded semi-annually for 2 years

Readme [11.4K]

Answer:

$541.22

Step-by-step explanation:

We are given;

Amount deposited (principal) is $500

Rate of interest is 4%

Time = 2 years

We are required to determine amount in the account after 2 years

Interest periods, n = 4 (since the money was compounded semi-annually)

rate of interest, r = 2%

Using the compound interest formula;

Amount, A = P (1 + r/100)^n

Therefore;

Amount = $500 (1 + 2/100)^4

= $500 × 1.02^4

= $541.22

Therefore, the balance in the account after 2 years is $541.22

7 0

4 years ago