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2 years ago

If 20 articles cost $90,then the cost of 9 articles is

Mathematics

1 answer:

Tom [10]2 years ago

8 0

Answer:

$40.50

Step-by-step explanation:

90 divided by 20 is 4.5. then you multiply that times 9 and that's your answer.

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If I had n dollars in my bake account and deposited $132 what's an expression to represent the total amount I have

Deffense [45]

Answer:

T = n + 132

Step-by-step explanation:

Initially you have n dollars in your bank account.

Since the question doesn't ask or concern the future or present value of money, after depositing $132 you will totally (T) have:

T = n + 132

4 0

3 years ago

59-(2c+3)=4(c+7)+c.

alisha [4.7K]

Step-by-step explanation:

${:}\leadsto$ $\sf 59-(2c+3)=4 (c+7)+c$

${:}\leadsto$ $\sf 59-2c-3=4c+28+c$

${:}\leadsto$ $\sf 56-2c=5c+28$

${:}\leadsto$ $\sf 5c+28=56-2c$

${:}\leadsto$ $\sf 5c+2c=56-28$

${:}\leadsto$ $\sf 7c=28$

${:}\leadsto$ $\sf c={\dfrac {28}{7}}$

${:}\leadsto$ $\sf c=4$

4 0

2 years ago

Read 2 more answers

A christmas gift to you to earn some points

Katyanochek1 [597]

Answer:

2229 thanks, merry early Christmas

6 0

3 years ago

Using elimination to solving systems of linear equations how would you solve

Amiraneli [1.4K]

12x+y=10 -----> 12x + y = 10
-3=3x+3y ------> -12x - 12y = 12 (multiplied by -4)
-11y = 22
y= -2

12x - 2 = 10
x = 1

8 0

3 years ago

Maths-please help Factorise 3y+15

djyliett [7]

Answer:

3(y + 5)

Step-by-step explanation:

Factorization is a process which is like the opposite of expansion. It involves factoring out the common factors from the given terms.

Thus to factorize 3y + 15, we have to consider the common factor(s) of the two terms. The common factor is 3 because the two terms (i.e 3y and 15) are both divisible by 3 only.

So that:

3y + 15= 3( $\frac{3y}{3}$ + $\frac{15}{3}$ )

= 3(y + 5)

The outcome of the process is 3(y + 5).

7 0

3 years ago