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True [87]
3 years ago
9

Evaluate b – 2a – c for a = –7, b = 3, and c = –7.

Mathematics
2 answers:
Novay_Z [31]3 years ago
7 0
Easy
sub
remmeber that (-)(-)=(+)
3-2(-7)-(-7)
3+14+7
24


answer si 24
Genrish500 [490]3 years ago
5 0

Answer:

The answer of the given expression is 24.

Step-by-step explanation:

The given expression is :

b-2a- c

We have to evaluate it.

We have been given the values as:

a = –7, b = 3, and c = –7.

Now, substituting these values in the expression we get:

3-2(-7)-(-7)

3+14+7

= 24

Therefore, the answer of the given expression is 24.

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5 STARS!!!
Ksivusya [100]

Since it is given that Boris takes x minutes to run 5 miles it means that Boris' speed will be given as: \frac{5}{x}.

Now, if Dylan runs slower than Boris and takes 12 more minutes to complete the 5 miles run, then that would mean that Dylan takes (x+12) minutes to complete the same run.

In this case we can see the Dylan's speed will be \frac{5}{x+12}.

Thus, the denominator represents the time Dylan takes to run 5 miles if he takes 12 minutes more than Boris.

Therefore, out of the given options, the second option is the correct option.

5 0
3 years ago
When her number is divided by 12, the remainder is 6, what is the remainder when the number is idvided by 9?
pentagon [3]
Remainder: 6 when divided by 12
So 12x6= 72
Original number: 72
72/9= 8
The remainder: 8
3 0
3 years ago
Lillian went shopping for a new phone because of a sale. The price on the tag was $20, but Lillian paid $16 before tax. Find the
ycow [4]

Answer:

20 % discount

Step-by-step explanation:

Lilian got 4 dollars off of the original price    (20 - 16 = 4 )

4 / 20  * 100% = 20% off

3 0
2 years ago
Two brothers, Mark and Walter, each inherit $20000. Mark invests his inheritance in a savings account with an annual return of 2
Igoryamba

Answer:

$720

Step-by-step explanation:

$20000 - 100%

$x. - 2.5%

x=(20000*2.5)/100=500

20000+500=$20500 in one year (Mark)

20000 - 100

x. - 6.1

x= (20000*6.1)/100 = 1220

20000+1220= $21220 (Walter)

21220-20500= $720 more (Walter will have after 1 year)

3 0
3 years ago
Mr. Lee bought rock to landscape around his house. He paid $190.72 for 8 tons of rock. How much did each ton cost?
frez [133]

Answer:

the correct answer I's 23.84

Step-by-step explanation:

I dividedc190.72 by 8

6 0
3 years ago
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