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FromTheMoon [43]
3 years ago
11

Simplify the expression: -4(5a + 7) + 7

Mathematics
2 answers:
Nat2105 [25]3 years ago
6 0

Answer:

thanks this is very helpful

sleet_krkn [62]3 years ago
5 0
-20a-21 or do you want me to actually break it down?
You might be interested in
Dario increased his savings from $350 to $413. What is Dario's percent increase in<br> savings?
Zanzabum

Answer:

18%

Step-by-step explanation:

63/350 × 100 = 18

hope this helps

5 0
2 years ago
A 12,000-lb killer whale might eat as much as 14,000 lb of fish per month (assume a 30-day month). If the average weight of a ce
brilliants [131]

Answer:

2196 fish

Step-by-step explanation:

Weight of fish that the killer whale might eat in a month (30 days) = 14,000 lb

Weight of the fish that killer whale might eat in a day = \frac{14000}{30} = \frac{1400}{3} lb.

Average weight of the fish that killer whale eats = 3.4 oz

Since,

1 pound(lb) = 16 ounces(oz)

So,

Weight of the fish that killer whale might eat in a day in ounces(oz) = \frac{1400}{3} \times 16=\frac{22400}{3} oz

Since, a certain fish weighs 3.4 oz, in order to find the number of fish that killer whale must eat, we must divide the total weight in ounces by 3.4 ounces.

So, the number of fish that killer whale would eat = \frac{22400}{3} \div 3.4 = 2196 fish

Thus, the killer whale needs to eat 2196 fish.

8 0
3 years ago
8x-18=30 math homework I need help
horsena [70]
Ok i will give you a hint ok look subtract 18-30 then you will get yhe answef for 8× ok try it
7 0
3 years ago
Read 2 more answers
Solve the absolute value equation |8|=28
DENIUS [597]

The answer is false. This is because<u> 8 does not equal the number 28</u>.

Explination:

    |8| = 28

     8≠28

7 0
2 years ago
Thanks in advance for your help, the question is;
valkas [14]

Answer:

8, 9

Step-by-step explanation:

1/2x + 2(x + 1) = 22

1/2x + 2x + 2 = 22

1/2x + 2x = 20

5/2x = 20

5x = 40

x = 8

8, 9

4 + 18 = 22

5 0
3 years ago
Read 2 more answers
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