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FrozenT [24]
4 years ago
9

Work out the value of 4bc-b when b=-3 and c=2

Mathematics
2 answers:
Pavel [41]4 years ago
7 0

Answer:

-18

Step-by-step explanation:

4bc-b

Let b = -3 and c=2

4 * (-3)* 2 - (-3)

-24 +6

-18

igor_vitrenko [27]4 years ago
3 0

Answer:

-21

Step-by-step explanation:

4(-3)2-(-3)

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Sarah earned a grade of 80% on the math exam that had 75 problems. How many correct problems did Sara answer?​
xenn [34]

Answer:

60

Step-by-step explanation:

80/100 times 75 and you will get 60

3 0
3 years ago
HELP ME !!!!!!!!!!!!!!!!!
yuradex [85]

Answer:

c  if i'm correct but its possible that its c

Step-by-step explanation:

7 0
3 years ago
Answer:
tekilochka [14]

Answer:

Grapes 12 lbs

Apples 20 lbs

Oranges 6 lbs

Cantaloupe 15 lbs

Peaches 15 lbs.

Step-by-step explanation:

Sammy has bought 12 lbs of Grapes.

Now, weight ration of Apples to Grapes is 5 : 3

Therefore, he bought Apples of \frac{12 \times 5}{3} =20 lbs

The wight ration of Grapes to Oranges is 4 : 2

Therefore, he bought Oranges of \frac{12 \times 2}{4} =6 lbs

Again, the weight ratio of Cantaloupe to Apples is 3 : 4

Therefore, he bought Cantaloupe of \frac{20 \times 3}{4} =15 lbs

Finally the weight ratio of Oranges to Peaches is 2 : 5

Therefore, he bought Peaches of \frac{6 \times 5}{2} =15 lbs

(Answer)

5 0
3 years ago
Active
Ber [7]

Answer:

The expressions for the payment made to Mary are,

(Monday) 90 = 15m + b

(Tuesday) 62 = 8m + b

where m and b are the fee per student and the base fee, respectively. Solving for m and b, the values are 4 and 30.

The equation that represents Mary's earning is

y = 4x + 30

For 20 students,

y = 4(20) + 30 = 110

For Lisa's earnings,

y = 8x + 15

Substituting 20,

y =8(20) + 15 = 175

Thus, Lisa would earn more than Mary by $65.

(Btw this is not my work, I got it from someone else on brainly and wanted to help lol)

7 0
3 years ago
Knowing that 8<br> Solve in this format: <br> _
kifflom [539]
What? This isn’t a question
4 0
3 years ago
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