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denpristay [2]
3 years ago
15

Sandra has 46 fewer coins than martha. Sandra has 57 coins. A. How many coins does Martha have? B. How many coins do Sandra and

Martha have?
Mathematics
2 answers:
Blizzard [7]3 years ago
8 0
A. Martha has 103 coins.

B. Sandra 57+ Martha 103 = 160
Alekssandra [29.7K]3 years ago
3 0
Martha has 103 and together Sandra and Martha have 170 coins.
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A cyclist rides his bike at a rate of 15 miles per hour. What is this rate in miles per minute? How many miles will the cyclist
kaheart [24]

Answer:

This is 0.25 miles per minute

The cyclist would travel 2.5 miles in 10 minutes

Step-by-step explanation:

The equation to convert miles per hour to miles per minute is to divide by 60, the number of minutes in an hour.

8 0
3 years ago
Factor completely:<br><br> x³ - 9x
scoray [572]

Answer:

x(x+3)(x-3)

Step-by-step explanation:

Factor out common term x

=x(x^2-9)

Factor x^2-9;

(x+3)(x-3)

=x(x+3)(x-3)

3 0
3 years ago
Read 2 more answers
Solve this k/3+4-2k=-9k
o-na [289]
K/3 + 4 -2k = -9k
First you add 9k to both sides
<span>k/3 + 4 -2k = -9k
</span>            +9k   +9k
<span>k/3 + 4 + 7k = 0
</span>
Now subtract 4 from both sides
k/3 + 4 + 7<span>k = 0
</span>        -4           -4
k/3 + 7<span>k = -4
</span>
Now multiply 3 by both sides
k/3 + 7<span>k = -4
</span>x3     x3    x3
k +21k = -12

Now add k + 21k
22k = -12

Now divide both sides by 22
<span>22k = -12
</span>-----    -----
 22      22
k = -6/11
3 0
3 years ago
Quick I need help 23 and 24 easy seventh grade math
Alekssandra [29.7K]

Answer:-14, -26

Step-by-step explanation:

13-4=9

4-9=-5

From here you can see that the pattern is -9

-5-9=-14

23. is -14

16-2=14

2-14=-12

From here you can see that the pattern is -14

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24. is -14

6 0
3 years ago
Solve for x.<br><br> x / 4 ≥ - 8
MariettaO [177]

Answer:

x \geqslant ( - 32) \:  \:  \: \:  or \:  \:  \:  \: ( - 32) \leqslant x

Step-by-step explanation:

\frac{x}{4}  \geqslant  - 8 \\ x \geqslant  - 8 \times 4 \\ x \geqslant  (- 32) \\

3 0
2 years ago
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