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ruslelena [56]
3 years ago
13

Hii please help i’ll give brainliest

Mathematics
1 answer:
GarryVolchara [31]3 years ago
8 0

Answer:

-12

Step-by-step explanation:

the opposite of 12 is -12

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A store is having a sale on jelly beans and trail mix. For 6 pounds of jelly beans and 2 pounds of trail mix, the total cost is
Aneli [31]

Answer:

Jelly Bean price per pound = $3.25, Trail Mix price per pound = $1.25

Step-by-step explanation:

Let jb = price per pound of jelly beans

Let tm = price per pound of trail mix

equation 1 -> 6*jb + 2*tm = 22

equation 2 -> 3*jb + 5*tm = 16

simplify equation 1

6*jb + 2tm = 22

2*tm = 22 - 6*jb

divide by 2

tm = 11 - 3*jb

plug this into equation 2

3*jb + 5*tm = 16

3*jb + 5*(11-3*jb) = 16

3*jb + 55 - 15*jb = 16

-12*jb + 55 = 16

-12*jb = 16 - 55

-12*jb = -39

jb = -39/-12

jb = 3.25

then, plug the cost per pound of jelly beans back into the simplified equation 1

tm = 11 - 3*jb

tm = 11 - 3*3.25

tm = 1.25

3 0
3 years ago
Write the whole number that correctly completes the word problem:
irina1246 [14]

Answer:

2/3(two thirds) of the 24 hour day awake, amounts to 24 x 2 / 3 hours awake which is equal to 16 hours awake

Step-by-step explanation:

24 x 2/3

there are many ways to evaluate this mentally, if you know 8x3=24, for instance you can multiply top and bottom of 2/3 by 8 yo gey 24 x 16/24 which is 16 hours

4 0
3 years ago
What are the like terms of the expression.<br> 3x+8x+y+x+8
babunello [35]

Answer:

the like terms are:

3x+8x+x+y+8

12x+y+8

7 0
3 years ago
Read 2 more answers
BRAINIEST PLEASE HELP I SUCK AT MIDDLE SCHOOL MATH PLEASE HELP MEH! (08.03/08.05 MC)
joja [24]
Substitution Method:
y=7x-8 ------(1)
y=5x-2 ------(2)

From (2) y=5x-2 sub into (1)
5x-2=7x-8
5x-7x=-8+2
-2x=-6
x=3 sub into (2)
y=5(3)-2
y=13
--------------------------------------
(x,y) = (3,13)
7 0
3 years ago
Read 2 more answers
Faith borrowed $2250 for home repairs. She paid back 24 payments of $132 each. How much did she pay in interest on the loan?
castortr0y [4]

Answer:

0.17%

Step-by-step explanation:

if she paid 24 payments of $132, then as a total she paid 132 x 24 = 3168.

formula for simple interest = p x r x t divided by 100

difference : 918

so,  22500 x r x 24 divided by 100 = 918

22500 x r 24 = 91800

24r = 4.08

r = 4.08 divided by 24 = 0.17%

Please mark brainiest.

5 0
3 years ago
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