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8090 [49]
3 years ago
9

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 <span>x - 1 = 3x + 9

All steps are:
</span>Step 1: 4ˣ⁻¹ = 64ˣ⁺³<span> 
Step 2: 4</span>ˣ⁻¹ = (4³)ˣ⁺³ <span>
Step 3: 4</span>ˣ⁻¹ = 4³ˣ⁺⁹ 
Step 4: x - 1 = 3x + 9
Step 5: x - 3x = 1 + 9
Step 6: -2x = 10
Step 7: x = 10/-2
Step 8: x = -5
4 0
4 years ago
Read 2 more answers
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:
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seeds. 

This is equal to:
3n+5

So, in total, Val will plant 3n + 5 seeds.
8 0
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
Jill: 3 • 20 + 0.5 • 250 = 185
Ron: R/3 + 125

hope that helps

4 0
4 years ago
What the answer to this
neonofarm [45]

Answer:

D

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

{(x  - 2)}^{2} = 12

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:

  • brainly.com/question/13035995
  • brainly.com/question/13062539

#LearnwithBrainly

6 0
3 years ago
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