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ANEK [815]
3 years ago
15

Help help help!!!!!!!!!!

Mathematics
1 answer:
liq [111]3 years ago
3 0

Answer:

<h2>z = 6</h2>

Step-by-step explanation:

4(z+1)=2(z-1)+18\qquad\text{use the distributive property}\\\\(4)(z)+(4)(1)=(2)(z)+(2)(-1)+18\\\\4z+4=2z-2+18\qquad\text{subtract 4 and}\ 2z\ \text{from both sides}\\\\4z-2z+4-4=2z-2z-2+18-4\qquad\text{combine like terms}\\\\2z=12\qquad\text{divide both sides by 2}\\\\z=6

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How do I convert 82.1, 7.3, 9.3 in a fraction form
nalin [4]

Answer:

Step-by-step explanation:

82.1 = 82 1/10 (thats 82 and 1/10) or 821/10 (if you dont want a mixed number)

7.3 = 7 3/10 or 73/10

9.3 = 9 3/10 or 93/10

if there is 1 number to the right of the decimal, put that number over 10....not the whole number, just the number to the right of the decimal. Leave the number to the left of the decimal alone.

if there were 2 numbers to the right of the decimal, then put those two numbers over 100.

example :

3.43 = 3 43/100

2.76 = 2 76/100

if there were 3 numbers to the right of the decimal, put those 3 numbers over 1000

example :

2.347 = 2 347/1000

3.679 = 3 679/1000

you understand ?

5 0
3 years ago
Christopher rides his bike to and from school every day. The total distance he rides each day is 7/8 mile. What is the total num
lesya692 [45]

Answer:

Step-by-step explanation:

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so distance traveled in 5 days = 7/8 × 5 = 35/8 = 4.375 miles

hope this helps

plz mark it as brainliest!!!!!!!

4 0
3 years ago
Find the sale price to the nearest cent.<br><br> $4.30 makeup; 40% discount; 6% tax
katrin [286]

Answer:

Sale price is $2.58.

Paid with tax is $2.73

Step-by-step explanation:

If the make-up is originally $4.30 and you receive a 40% discount. This means you'll pay 60% of the price since 100-40=60.

To find this price, 60% as 0.6 is multplied with the price. 0.6*4.30 = $2.58

This is the sale price.

When you pay you will pay 6% tax or 0.06 of the price. Find this by multiplying $2.58 by 1.06.

2.58(1.06) = $2.73

7 0
3 years ago
WILL GIVE BRAINLIEST, 100 points -- can you help me answer these questions for Algebra?
viva [34]

Answer:

The 2 numbers are 158 & 199

Step-by-step explanation:

Let 1st no. = x

2nd no. = y

x + y = 357 -----(1)

x - y = 41 ------(2)

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4 0
4 years ago
Solve. 4+ x/7 = 2. plss...​
galina1969 [7]

Answer:

-21

Step-by-step explanation:

4+1-21/7 =2

8 0
3 years ago
Read 2 more answers
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