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2 years ago

6

Caleb’s parents drove him to a swimming meet 208 km away. It took them 2 hours, which includes a 15-minute break to refuel. What

was their average driving speed?

1 answer:

Reptile [31]2 years ago

3 0

I think the answer is 119 kph

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In science class, Liz learned that trees help make the oxygen that people breathe. One tree makes about 250 pounds of oxygen eac

klio [65]

Answer: The answer is 8000 pounds, or 4 tons

Step-by-step explanation:

This is true because each tree makes about 250 pounds of oxygen. She counted 32 so.....

(32)(250)=8000

then convert 8000 pounds to tons and you get 4 tons

5 0

2 years ago

Involving fractions, which whole is divided into fourths? Pick as many, fractions of 4s, 5s, 6s, 8s, and/or 10s.

TEA [102]

We start as 4 8 12 16 20 24that are all divided into the fourth

8 0

2 years ago

-15=-4m+5<br><br>8n+7=31<br><br>-10=10(k-9)

Korolek [52]

$-15=-4m+5\ \ \ |both\ sides\ /+4m\\\\4m-15=5\ \ \ \ |both\ sides\ /+15\\\\4m=20\ \ \ \ |both\ sides\ /:4\\\\\underline{\underline{m=5}}$

=========================================================

$8n+7=31\ \ \ \ |both\ sides\ /-7\\\\8n=24\ \ \ \ |both\ sides\ /:8\\\\\underline{\underline{n=3}}$

=========================================================

$10(k-9)=-10\ \ \ \ |both\ sides\ /:10\\\\k-9=-1\ \ \ \ |both\ sides\ /+9\\\\\underline{\underline{k=8}}$

6 0

2 years ago

Read 2 more answers

Eliza went into a store and spent $97.91. She bought 3 pairs of pants and one dress. The pants cost $16 each. How much money did

creativ13 [48]

The answer should be 49.91

3 0

2 years ago

At Andrew Jackson High School, students are only allowed to enroll in AP U.S. History if they have already taken AP World Histor

o-na [289]

Answer:

<u><em>About 0.22</em></u>

Explanation:

There are two sets:

Set W of incoming seniors who took AP World History, and

Set E of incoming seniors who took AP European History

And there is a subset, which is the intersection of those two sets:

Subset W ∩ E of senior students who took both.

The incoming seniors who are allowed to enroll in AP U.S. History, call them the subset S, is the set of those students that belong to W or E or both W ∩E.

By property of sets:

S = W + E - W∩E = 175 + 36 - 33 = 178

Then, 178 out of 825 incoming seniors took one or both courses, and the desired probability of a randomly selected incoming senior is allowed to enroll in AP U.S. History is:

178/825 = 0.21576 ≈ 0.22

6 0

2 years ago