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Zolol [24]
3 years ago
12

Simplify the expression: –3(n − 5)

Mathematics
2 answers:
disa [49]3 years ago
6 0
Because of the minus sign 3 becomes -3

The answer is -3

n-5 evaluates to n-5

Multiply -3 by n-5

we multiply -3 by each term in n-5 term by term.

This is the distributive property of multiplication.

Multiply -3 and n

Multiply 1 and n

The n just gets copied along.
marusya05 [52]3 years ago
3 0

Answer:

-35+7u

Step-by-step explanation:

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dedylja [7]
1/2 a gallon would be 3 pints
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For the problem I tried dividing but my answers were not correct. How can I solve this problem then? Can someone help me out her
astraxan [27]

Answer:

8

Step-by-step explanation:

5 = 40

1 = x

Then we multiply by the rule of crisscrossing

5 x X = 40 x 1

5x = 40 then divide both by 5

X = 8

3 0
2 years ago
Person A can make a cupcake in 5 minutes, Person B can make a cupcake in 9 minutes. In total they made 168 cupcakes. How many cu
Stolb23 [73]

Answer:

Person A made 108 cupcakes and person B made 60 cupcakes.

Step-by-step explanation:

Person A makes 1 cupcake in 5 minutes.

Say in x minutes A makes : \frac{x}{5} cupcakes

Person B makes 1 cupcake in 9 minutes.

Say in x minutes B makes : \frac{x}{9} cupcakes

Total cupcakes prepared by A and B in x minutes = 168

\frac{x}{5}+\frac{x}{9}=168

\frac{14x}{45}=168

x=\frac{168\times 45}{14}=540

So, cupcakes made by A = \frac{540}{5}=108

Cupcakes made by B = \frac{540}{9}=60

Person A made 108 cupcakes and person B made 60 cupcakes.

5 0
3 years ago
Stephen and Diana are traveling towards each other from points that are 276 miles apart. If Diana is traveling 4 mph faster than
Allisa [31]

Answer:

Step-by-step explanation:

let speed of Stephen=x mph

speed of Diana=x+4

then

6x+6(x+4)=276

divide by 6

x+x+4=276/6=46

2x=46-4=42

x=42/2=21

Stephen is traveling at  21 mph.

Diana is traveling at 21+4=25 mph.

6 0
2 years ago
Use the graph below to find the equation that it represents.
hoa [83]

Answer:

looking at the image it forms

the equation it'll make B: y= -2x -4

each dot will equal -2 and the dot is maybe one 2 but thats due to the problem of 4-2x1 so it's marked on 2 instead of four incase it throw you off of thy answer of B

4 0
2 years ago
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