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3 years ago

What is y-7=8?one step equation

Mathematics

2 answers:

Fynjy0 [20]3 years ago

8 0

Answer:

y=15

Step-by-step explanation:

y-7=8

y=8+7

y=15

vodomira [7]3 years ago

7 0

Answer:

y=15

Step-by-step explanation:

y-7=8

Add 7 to each side to cancel out the 7 next to the variable.

You get y=15.

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How to solve 6x + y= -5, -6x + 12y=96 using elimination and does it have no solution or many solutions?

Alika [10]

Answer:

x = -2

Step-by-step explanation:

Arrange 6x + y= -5, -6x + 12y=96 vertically:

6x + y= -5

-6x + 12y=96 Now combine like terms:

--------------------

13y = 91

Solving for y by dividing both sides by 13: y = 7

Find x by substituting 7 for y in the second equation: -6x + 12(7) = 96

Then -6x = -84 + 96, or:

-6x = 12, and so x = -2

8 0

2 years ago

Paul has an eight-year loan with a principal of $26,900. The loan has an interest rate of 8.18%, compounded quarterly. If Paul p

babymother [125]

Answer:

The answer is "option b"

Step-by-step explanation:

Amount = $26,900

r= 0.0818 %

$i=\frac{r}{4}\\\\$

$=\frac{0.0818}{4}\\\\=0.02045$

t= 8 years

$n= 8 \times 4$

$=32$

$D=\frac{1-(1+i)^{-n}}{i}\\$

$=\frac{1-(1+0.02045)^{-32}}{0.02045}\\\\=\frac{1-(1.02045)^{-32}}{0.02045}\\\\=\frac{1-0.52319627}{0.02045}\\\\=\frac{0.47680373}{0.02045}\\\\=23.3155858$

$Q= \frac{Amount}{Discount \ factor }\\$

$=\frac{26900}{23.3155858} \\\\=1153.73468$

Payment $=1153.73468 \times 32\\\\$

$= \$ 36919.5098\\$

$\text{Total interest = Payment - amount}$

$= \$ 36919.5098 - \$ 26900 \\\\ = \$ 10019.5098$

$\text{Finance charge = Total interest + service charge}$

$= \$ 10019.5098 + \$ 1527\\\\ = \$ 11546.5098$

3 0

3 years ago

How to answer the problem

Snowcat [4.5K]

(3 + 2) - 3² = 5 - 9 = -4

Regards :)

3 0

3 years ago

Read 2 more answers

What is the percent of decrease from 200 to 110? A. 45% B. 55% C. 82% D. 90%

strojnjashka [21]

A) 45%, (100-200)/200=0.45 which also equals 45% :)

8 0

3 years ago

27millimeters. 1cm/10mm

Alla [95]

If you would like to know how many centimeters are 27 millimeters, you can calculate this using the following steps:

1 cm ... 10 mm
x cm = ? ... 27 mm

1 * 27 = 10 * x
27 = 10 * x /10
x = 27/10
x = 2.7 cm

The correct result would be 2.7 cm.

5 0

3 years ago

Read 2 more answers