Ask question

Ask question

All categories

3 years ago

7

Ann will run more than 38 miles this week. So far, she has run 21 miles. What are the possible numbers of additional miles she w

ill run? Use t for the number of additional miles she will run. Write your answer as an inequality solved for t.

1 answer:

goldenfox [79]3 years ago

7 0

38 - 21 = t

t <21

t = 17

You might be interested in

Vanessa wants to purchase a new cell phone plan. The two plans from which she can choose are shown below. Vanessa used the syste

user100 [1]

Answer:

2. 325 minutes.

Step by step explanation:

We will substitute our given number of minutes in our both equation one by one to find the correct option.

1. Let us substitute m= 775 in both equations.

$CA=22+0.13m$

$CA=22+0.13\cdot 775$

$CA=22+100.75=122.75$

$CB=44+0.09(m-100)$

$CB=44+0.09(775-100)$

$CB=44+0.09\cdot675$

$CB=44+60.75=104.75$

$104.75\neq122.75$

We can see that both plans have different costs , therefore, 1st option is incorrect.

2. Let us substitute m= 325 in both equations.

$CA=22+0.13m$

$CA=22+0.13\cdot 325$

$CA=22+42.25=64.25$

$CB=44+0.09(m-100)$

$CB=44+0.09(325-100)$

$CB=44+0.09\cdot 225$

$CB=44+20.25=64.25$

$64.25=64.25$

When Vanessa has used the phone for 325 minutes, the cost for Plan A and the cost for Plan B will both be $64.25.Therefore, 2nd option is correct choice.

3. Let us substitute m= 32.5 in both equations.

$CA=22+0.13m$

$CA=22+0.13\cdot 32.5$

$CA=22+4.225=26.225$

$CB=44+0.09(m-100)$

$CB=44+0.09(32.5-100)$

$CB=44+0.09\cdot -67.5$

$CB=44-6.075=37.925$

$37.925\neq26.225$

4. Let us substitute m= 764 in both equations.

$CA=22+0.13m$

$CA=22+0.13\cdot 764$

$CA=22+99.32=121.32$

$CB=44+0.09(m-100)$

$CB=44+0.09(764-100)$

$CB=44+0.09\cdot 664$

$CB=44+59.76=103.76$

$121.32\neq103.76$

Therefore, 4th option is incorrect.

3 0

3 years ago

Marcy played the piano for 45 minutes.She stopped playing at 4:15 P.M.At what time did she start playing the piano

musickatia [10]

15-45=-30
60-30=30
so the answer is 3:30

3 0

3 years ago

if 60% of your class likes to play basketball at recess and there are 30 students in your class, how many like playing basketbal

Alenkinab [10]

Answer:

18

Step-by-step explanation:

4 0

3 years ago

A scientific model doesn’t need to be something physical. It can also be a mathematical __________

MAVERICK [17]

Answer:

2+4

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Three sixth-grade students competed in the 100-meter dash. The table shows their times.

Sergeeva-Olga [200]

Answer:

It is 12.9, 13.1, 13.2 C.

Step-by-step explanation:

5 0

3 years ago