Answer:
The first car's speed is 40 mph. 2 hours at that rate equals 80 miles. So:
140-80=60
60 miles/2 hours=30 mph as the rate of the second car.
Step-by-step explanation:
Answer:
<h2>
</h2>
Step-by-step explanation:
Rewrite the division as a fraction.
Answer: 5
Step-by-step explanation:
2x + 3 = 13
Answer:
Add: $100
Take Out: $25
Total: $835.50
Step-by-step explanation:
A deposit is an amount that is put into the account, by the owner or by someone else.
A withdrawal is an amount that is taken out of the account.
The overall ending balance shows the total amount in the account at the end of the month.
Answer:
Step-by-step explanation:
- <em>During a mathematics activity, teacher Julieta distributed to each of her students 4 straws measuring 2 cm, 3 cm, 7 cm and 8 cm. In this activity, Julieta's students had to build triangles with these straws, without cutting them.
</em>
- <em>How many different triangles could each of Julieta's students form with these straws?</em>
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- <em>Triangle inequality theorem says that no any side of a triangle can be longer or equal to the sum the other two sides</em>
<u>Given measures:</u>
<u>We see that:</u>
Therefore we can't make triangles with the sides of 2 cm, 3 cm and 7 cm or 8 cm
<u>Possible solutions are:</u>
- 2 cm, 7 cm, 8 cm
- 3 cm, 7 cm, 8 cm
So we can make two different triangles