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pentagon [3]
3 years ago
11

Solve each equation. Check your solution. 10z = 40

Mathematics
1 answer:
m_a_m_a [10]3 years ago
6 0

Answer:

b.   z = 4

Step-by-step explanation:

Multiply both sides of the equation by 1/10. This gives ...

  (1/10)·10z = (1/10)·40

  z = 4                 simplified

_____

<em>Check</em>

Putting 4 where z is in the original equation should give us a true algebraic expresion. It does.

  10·4 = 40        true

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They will rest after they hike `2` miles. Then they will hike the remaining `1.75` miles to the lookout. The trail the hikers wi
Lyrx [107]

Answer:

1.75 gallons

Step-by-step explanation:

First, we need to calculate how far the hike is going up the trail. They first hike 2 miles and then another 1.75 miles after resting so...

2 + 1.75 = 3.75 miles

The trail is 3.75 miles long, the question states that the return path is 0.5 miles shorter, therefore...

3.75 - 0.5 = 3.25 miles

Leaving us with a total hiking distance of

3.75 + 3.25 = 7 miles.

Since each hiker will carry 0.25 gallons for each mile we simply need to multiply this amount by the total number of miles in the hike.

7 * 0.25 = 1.75 gallons

Finally, we can see that each hiker will carry a total of 1.75 gallons of water for the entire hike.

8 0
2 years ago
Plss help if can!! Thanks!
Novosadov [1.4K]
The first one is 2 the second one is 3
5 0
3 years ago
Noah says to find 20% of a number he divides the number by 5. Is this true explain your answer
Nutka1998 [239]

Answer:

yes

Step-by-step explanation:

note that 20% = \frac{20}{100} = \frac{1}{5}

Hence to find 20% of a number, dividing the number by 5 is correct

20% of £30 = \frac{30}{5} = £6


5 0
3 years ago
Linh buys two T-shirts for $12 each, a pair of shoes for $28, and a pair of jeans for $45. She has a coupon for 30 percent off h
Darina [25.2K]
12x2= $24
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So $97 is 100%

So 100%-30% =70% (30% off)
(note: 70% = 70/100 = 0.7)

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7 0
3 years ago
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A rock climber averages 12 3/5 feet per minute. How many feet does the rock climber climb in 30 minutes.
netineya [11]

378 feet

Its to long to explain but thats the answer

5 0
3 years ago
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