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netineya [11]
3 years ago
5

Find the value of the expression 2ab/c when a = -1, b = -4, and c= 2

Mathematics
2 answers:
krok68 [10]3 years ago
8 0
Here is the answer, I hope it helps

motikmotik3 years ago
4 0

Answer:

4

Step-by-step explanation:

Given

\frac{2ab}{c} , substitute the given values into the expression

= \frac{2(-1)(-4)}{2}

= \frac{2(4)}{2}

= \frac{8}{2}

= 4

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Help me with 3, and 5 show your work !
ss7ja [257]
Okay so for number 3, you have to do the top work first.

3: POSITIVE 2!! first, you do the stuff inside the parentheses first because of P(parentheses)EMDAS. so, 14-2-10! -2-10 is -12 and then plus positive 14 is +2. but, the negative sign outside of the parentheses makes that +2 a -2.
but, you cant forget the -12 outside. you have to do -12-2 which gets you -14. then, this is easy! -14 divided by -7 is a positive 2!

5: POSITIVE 3!! again, do the stuff in the parentheses first!! -2-4 is -6. then, -6 x 2 is -12! so, divide -12 by -4 and you get a positive 3!
5 0
2 years ago
You can buy a box of 150 sharpie pens for $165 or a dozen for $13.50
Setler [38]

Answer: do the a dozen for $13.50

Step-by-step explanation: It will help save money

5 0
3 years ago
Mrs. Jacobs purchased a 5 pound package of ground beef for $12.40. She decided to use 8 ounces each day for dinner recipes. What
WITCHER [35]
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7 0
3 years ago
Daniela has the same amount of money automatically deposited into a new savings account each week. After 3 weeks, she has $18. A
Burka [1]

Answer:

$6 per week  (ratio 6/1)

Step-by-step explanation:

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8 0
2 years ago
Frank weighs 160 pounds and is on a diet to gain two pounds a week so that he can make the football team. John weighs 208 pounds
gladu [14]

Answer:  If Frank and John can meet these goals with their diets , they will weigh same after 9.6 weeks and they will weigh 179.2 pounds.

Step-by-step explanation:

Let x = Number of weeks.

As per given question ,

Weight of Frank after x weeks = 160+2x (pounds)

Weight of John after x weeks = 208-3x (pounds)

When  Weight of Frank= Weight of John

\Rightarrow\ 160+2x= 208-3x

\Rightarrow\ 2x+3x= 208-160

\Rightarrow\ 5x= 48\Rightarrow\ x=\dfrac{48}{5}=9.6

Weight of Frank after 9.6 weeks = 160+2(9.6) = 179.2 pounds

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Hence,  If Frank and John can meet these goals with their diets , they will weigh same after 9.6 weeks and they will weigh 179.2 pounds.

3 0
3 years ago
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