3 years ago

Which inverse operations would you use to solve the equation y÷7-5=4

Mathematics

1 answer:

notka56 [123]3 years ago

6 0

Multiplication. Solve 7-5=2 then multiply 2 on both sides.
Y/7-5=4
Y/2=4
*multiply both sides by 2*
Y=8

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A student is solving the equation 4^x–1 = 64^x+3.

Doss [256]

The answer is x - 1 = 3x + 9

All steps are:
Step 1: 4ˣ⁻¹ = 64ˣ⁺³
Step 2: 4ˣ⁻¹ = (4³)ˣ⁺³ 
Step 3: 4ˣ⁻¹ = 4³ˣ⁺⁹
Step 4: x - 1 = 3x + 9
Step 5: x - 3x = 1 + 9
Step 6: -2x = 10
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4 years ago

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Val is going to plant n vegetables seeds in one garden and 2n+5 vegetables seeds in another. How many seeds is Val going to plan

mezya [45]

Val will plant:
$2n+5+n$
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This is equal to:
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4 years ago

Jack, Jill, and Ron share a 2-bedroom apartment. Rent is represented by R. The water bill is $20 per person. The electric bill i

erastovalidia [21]

Jack: 2R/3
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Ron: R/3 + 125

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4 0

4 years ago

What the answer to this

neonofarm [45]

Answer:

Step-by-step explanation:

(I solved in the picture, firstly look at there)

after completing the square and factoring :

${x}^{2} + 4x + 4 = 8 + 4$

${x}^{2} + 4x + 4 = 12$

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Hope this helps ^-^

6 0

3 years ago

a car decreased in value from $980 to $720 in one year what was the per cent of decrease to the nearest whole per cent ?

kolezko [41]

The decrease was 27%.

Step-by-step explanation:

Old value = $980

New value = $720

Decrease = Old value - New value

$Decrease=980-720=\$260$

Percent decrease = $\frac{Decreased/ amount}{Old value}*100$

$Percent\ decrease=\frac{260}{980}*100\\Percent\ decrease=0.265*100\\Percent\ decrease= 26.5\%$

Rounding off to near whole percent

Percent decrease = 27%

The decrease was 27%.

Keywords: Percentage, subtraction

Learn more about subtraction at:

#LearnwithBrainly

6 0

3 years ago