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tatuchka [14]
3 years ago
15

Can someone help meee

Mathematics
2 answers:
pickupchik [31]3 years ago
4 0

Step-by-step explanation:

29+1/5r=

29+(1/5×-1/2)

29+1/10

291/10

=29.1

Maru [420]3 years ago
4 0
The answer would be 28.9. 1/5x-1/2= -0.1
-0.1+29= 28.9
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Please help!!! Need help ASAP!
Mazyrski [523]

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3 0
3 years ago
Solve each system by substitution<br>x - y=4<br>x+2y=-2​
DENIUS [597]

Answer:

<h2>x = 2 and y = -2</h2>

Step-by-step explanation:

\left\{\begin{array}{ccc}x-y=4&\text{add}\ y\ \text{to both sides}\\x+2y=-2\end{array}\right\\\\\left\{\begin{array}{ccc}x=4+y&(1)\\x+2y=-2&(2)\end{array}\right\\\\\text{substitute (1) to (2):}\\\\(4+y)+2y=-2\qquad\text{combine like terms}\\\\4+(y+2y)=-2\qquad\text{subtract 4 from both sides}\\\\3y=-6\qquad\text{divide both sides by 3}\\\\y=-2\\\\\text{put the value of}\ y\ \text{to (1):}\\\\x=4+(-2)\\\\x=2

7 0
3 years ago
62.4g of sugar is needed to make 8 cakes. How much sugar is needed for 9 cakes?
Andrews [41]

Answer:

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Step-by-step explanation:

4 0
3 years ago
A scientist changes the temperature of a solution at a rate of
Elan Coil [88]

Answer:

11 minutes

Step-by-step explanation:

I may be missing something. This is too simple.

88 degree change at 8 degrees per minute = 11 minutes.

5 0
3 years ago
Mrs. Robinson bought a novel at a bookstore on sale for 20% off its regular price of $29.99. Mr. Chang bought the same novel at
Kay [80]
Mr. Robinson gets $5.99 off which is $24.00
Mr. Chang gets $2.50 off which is $22.50

Work: 
29.99x.20=5.99     29.99-5.99 = 24.00
25.00x.10=2.50     25.00-2.50 = 22.50

4 0
3 years ago
Read 2 more answers
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