2 years ago

X over 2.5 = 5 equations and inequalities

Mathematics

1 answer:

Gnoma [55]2 years ago

7 0

Answer:

2.5 times 5 = 12.5

Step-by-step explanation:

you need one hole to equal one and you need 5 wholes so you take the part and multiply it by the number of whole you need I think

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The basketball boosters are selling school t-shirts for 20 dollars and pants for 45 dollars. Last week they sold 100 items and c

lana66690 [7]

He sold 76 shirts and 24 pants.

Step-by-step explanation:

Given,

Cost of one t-shirt = $20

Cost of one pants = $45

Total items sold = 100

Total sales = 2600

Let,

x be the number of t-shirts

y be the number of pants

According to given statement;

x+y=100 Eqn 1

20x+45y=2600 Eqn 2

Multiplying Eqn 1 by 20

$20(x+y=100)\\20x+20y=2000\ \ \ Eqn\ 3$

Subtracting Eqn 3 from Eqn 2

$(20x+45y)-(20x+20y)=2600-2000\\20x+45y-20x-20y=600\\25y=600$

Dividing both sides by 25

$\frac{25y}{25}=\frac{600}{25}\\y=24$

Putting in Eqn 1

$x+24=100\\x=100-24\\x=76$

He sold 76 shirts and 24 pants.

Keywords: linear equations, subtraction

Learn more about linear equations at:

#LearnwithBrainly

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2 years ago

Solve by factoring:

DerKrebs [107]

A.<span>(x+3)(x+4)=<span>0
x=-3,-4
B.X=5,4
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Marina86 [1]

25% or 1/4 in chance. 4 marbles and 16 other colours. 4/16=1/4=25%

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Answer:

4/8

Step-by-step explanation:

it's equivalent to 1/2

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