3 years ago

A real-world problem problem to represent 10x + 40 = 100

Mathematics

1 answer:

Volgvan3 years ago

3 0

I need $100 for my game console I want. I already have $40 and I get $10 every week for doing chores.

You might be interested in

When Sam’s assistant was collecting the data she mistakenly noted that the oldest person was 48. The oldest person was actually

Luden [163]

I think that the answer is 2400. hope it help???

7 0

3 years ago

If Johnny has 3 apples and he gives Tom one apple how many apples does Johnny have

Bezzdna [24]

2 apples 3-1=2 because if you have 3 apples and tom takes 1 do the math 1-3 you're answer is 2

8 0

3 years ago

Read 2 more answers

What is the answer. to.

nydimaria [60]

I believe it is (2) 60

7 0

3 years ago

`ANSWER ASAP GIVING BRAILIEST AND STUFF!

kykrilka [37]

Answer:

If the dimension increased by doubled, tripled or quadrupled, then it will be 2x, 3x, or 4x for each dimension.

3 0

3 years ago

Read 2 more answers

Two customers went to a post office to buy postcards and large envelopes. Each postcard

astraxan [27]

The right answer is Option A.

Step-by-step explanation:

Let,

x be the postcards

y be the large envelops

According to given statement;

14x+5y=12 Eqn 1

10x+15y=24.80 Eqn 2

Multiplying Eqn 1 by 3;

$3(14x+5y=12)\\42x+15y=36\ \ \ Eqn \ 3$

Subtracting Eqn 2 from Eqn 3;

$(42x+15y)-(10x+15y)=36-24.80\\42x+15y-10x-15y=11.20\\32x=11.20\\$

Dividing both sides by 32

$\frac{32x}{32}=\frac{11.20}{32}\\x=0.35$

Putting x=0.35 in Eqn 1;

$14(0.35)+5y=12\\4.90+5y=12\\5y=12-4.90\\5y=7.10$

Dividing both sides by 5

$\frac{5y}{5}=\frac{7.10}{5}\\y=1.42$

Therefore, one large envelope costs $1.42

The right answer is Option A.

Keywords: linear equations, subtraction

Learn more about linear equations at:

#LearnwithBrainly

4 0

3 years ago