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Vedmedyk [2.9K]
3 years ago
11

Before dividing, decompose 420 to make it easier to divide by 4.

Mathematics
1 answer:
den301095 [7]3 years ago
3 0

Answer:

4/420=105

Step-by-step explanation:

decompose 42 and divide by 4 is 10 and is 20 divided by 4 is 5

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15 3/4 divided by 1 3/4?
TiliK225 [7]
Ok well apparently you can't just put the answer and it has to be written out so its 15.75 divided by 1.75

In conclusion, it's 9.
3 0
3 years ago
What are two numbers that multiply to the value on top and add to the value on bottom
HACTEHA [7]

is this correct?

a * b = -70

a + b = -9......a = -9 - b

b(-9 - b) = -70

-b^2 - 9b + 70 = 0

(-b + 5)(b + 14) = 0

-b + 5 = 0

5 = b

b + 14 = 0

b = -14

ur numbers are -14 and 5

-14 * 5 = -70

-14 + 5 = -9

8 0
3 years ago
can someone give me the answers ( the answers are on the last page of the worksheet but like I have no idea how to do the work)
astraxan [27]

Answer:

Step-by-step explanation:

-8-4v=40 add 8 to both sides

-4v=32 divide both sides by -4

v= -8

3v+2v=25

5v=25  divide both sides by 5

v=5

x/2 - 8 = -14 add 8 to both sides

x/2= - 6

-6 * 2= -12

check

-12/2-8=-14

-6-8=-14

-14= -14

-6+n/3= -3 add 6 to both sides

n/3=3

3*3=9

check

-6+9= -3

-3 = -3

5 0
3 years ago
Danielle drives from her home to the store at an average speed of 40 miles per hour. She returns home along the same route at an
wolverine [178]

she drove 40 mph & 60 mph

60 +40 = 100

100/2 = 50

 so she drove an average of 50 mph

5 0
3 years ago
How many 1/4 cup servings of raisins are in 7/8 cups of raisins?
Ostrovityanka [42]

Answer:

7

Step-by-step explanation:

Divide 7/8 by 1/4.  (You divide the "supply" of raisins into 1/4 cup "parts".)

\frac{7}{8} \div \frac{1}{4} = \frac{7}{8} \times \frac{4}{1} = \frac{28}{8} =\frac{7}{1} =7

Multiply 7/8 by the reciprocal of 1/4 ("flip" the 1/4).

The result is 28/8, which can be simplified ("reduced") to 7.

3 0
2 years ago
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