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olga55 [171]
3 years ago
9

Which expression is equivalent to 7(4+7)? *

Mathematics
2 answers:
Mashcka [7]3 years ago
8 0

Answer:

28+49

Step-by-step explanation:

azamat3 years ago
3 0
28+49 is the answer to the ?
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Ms. Day went shopping last week and spent a total of $120. Blankets cost her $16 while pillows cost her $10. Altogether, she bou
Crazy boy [7]

Answer:

Ms. Day bought 5 blankets and 4 pillows.

Step-by-step explanation:

Let x denotes number of blankets and y denotes number of pillows.

Blankets cost her $16 while pillows cost her $10 and Ms. Day spent a total of $120.

16x+10y=120

Divide this equation by 2.

8x+5y=60\,\,...(i)

Ms. Day bought 9 items.

x+y=9

Multiply this equation by 5.

5x+5y=45\,\,...(ii)

Subtract (ii) from (i)

3x=15\\x=5

Put x=5 in x+y=9

5+y=9\\y=9-5\\y=4

Therefore,

Ms. Day bought 5 blankets and 4 pillows.

4 0
3 years ago
What are the solutions to the equation 0 = x2 – x – 6?
ioda
Factor to this equation out, the easiest way is to solve for the two x values that add up to -1 but when multiplied is equal to -6. It should look like this: (x +- ?)(x +- ?). 
The factored out form is then (x - 3)(x +2), because -3 + 2 = -1 and when multiplied together gives -6. 
x - 3 = 0
x = 3
x + 2 = 0
x = -2
The two solutions are therefore, x = 3 and x = -2. 

Hope it helps
3 0
3 years ago
Read 2 more answers
Jeffery earned $65 doing yard work. He bought a pair of jeans for $31.25 and a sweat shirt for $16.50. He set aside the money le
erastova [34]

Answer:

Step-by-step explanation:

65.00 - 31.25 - 16.50 = $17.25

4 0
3 years ago
Find the volume of the prism
Kisachek [45]

Answer:

V= l x b x h

= 9cm x 6cm x 12cm

=648

7 0
3 years ago
Plz plz plz this is due today and I really need help
nekit [7.7K]

Answer:

The y-intercept is (0, 34).

I used Demos graphing calculator and included an image of what values I put in.

6 0
3 years ago
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