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MatroZZZ [7]
3 years ago
10

Select the expression that is equivalent to -4(3m - 5)

Mathematics
2 answers:
spin [16.1K]3 years ago
8 0

Step-by-step explanation:

-4(3m - 5) = -12m + 20

C.) -12m -(-20)

-12m + 20

Misha Larkins [42]3 years ago
5 0
Answer:

B

Explanation:

The answer to the original expression is -12 - 20.

And the answer to B, is -12 - 20.
-4 x 3 = -12
-4 x 5 = -20
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Q19. Four positive whole numbers add up to 36
MAXImum [283]

Answer:

Step-by-step explanation:

let the numbers be 7x,y,y,y.

7x+3y=36

3y=36-7x

y=\frac{36-7x}{3} \\let~x=3\\y=\frac{36-7 \times 3}{3} =\frac{15}{3} =5\\

numbers are 7×3,5,5,5

or 21,5,5,5

21×5×5×5=2625

7 0
3 years ago
A triangle has angles measuring 45°, 55°, and 80°. It is dilated by a scale factor of 2. What are the angle measures, in order f
lbvjy [14]

Answer:

45°,55° and 80°.

Step-by-step explanation:

Dilations preserve angle measures, regardless of the scale factor. Therefore, the angle measures of the image will be the same of that of the pre-image, so our answer is still 45 °, 55 °, and 80 °.

to learn more about angles

visit;. brainly.com/question/28493506

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3 0
1 year ago
Read 2 more answers
What is the answer to this question?
Serjik [45]

Answer:

For 2 hours of dog stinting the total cost will be the same for the two services.

Step-by-step explanation:

x to represent the number of hours of dog sitting

<u>Derrick's Dog Sitting </u>

Fixed charged rates  = $12

Sitting charges per hour  = $7

⇒Charges for x hours siting = x ( Charges per hour)

= x ( $7)  = 7x

⇒Total charges of Derrick's Dog Sitting  for x hours  = Fixed charge + Hourly Rate

= $7x + 12

<u> Darlene's Dog Sitting</u>

Fixed charged rates  = $16

Sitting charges per hour  = $5

⇒Charges for x hours siting = x ( Charges per hour)

= x ( $5)  = 5x

⇒Total charges of Darlene's Dog Sitting<u> </u>for x hours  = Fixed charge + Hourly Rate

= $5x + 16

Now, according to the question:

for x hours sitting, both company charges are same.

⇒ $7x + 12  =  $5x + 16

or, 7x - 5x = 16 - 12

or, 2x = 4

⇒ x =  2

Hence, for 2 hours of dog stinting the total cost will be the same for the two services.

5 0
4 years ago
The perimeter of a triangle is 7272 cm. the longest side is 66 cm less than the sum of the other two sides. twice the shortest s
VashaNatasha [74]
Suppose the three sides are a, b, and c, with c being the longest, a being the shortest
first equation: c=(a+b)-66
second equation: 2a=c-55=> c=2a+55
plug c=2a+55 into the first equation: 2a+55= a+b-66 => b=a+121
a+b+c=a+(a+121)+(2a+55)=7272 =>4a+176=7272 =>a=1774
a=1774, b=1895, c=3603


4 0
3 years ago
Between what two consecutive intergers is √182 how can you determine this without a calculator​
Nata [24]

Answer:

You change it to a deciamal, So you sqaure root the 182 and that becomes 13.49074 in a decimal then you graph it. but you should know how to sqaure root wihtout a caculater, thats basis geomentry

Step-by-step explanation:

3 0
4 years ago
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