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3 years ago

2(1/2q+1)=-3(2q-1)+4(2q+1)

Mathematics

1 answer:

babymother [125]3 years ago

6 0

1q+2=-6q+3+8q+4
1q+2=2q+7
<span>-2q -2q
</span>-q+2=7
<span> -2 -2
</span>-q=<span>5
-1 -1
q=-5
</span>

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A store is having a sale on jelly beans and almonds. For 6 pounds of jelly beans and 2 pounds of almonds, the total cost is $12

CaHeK987 [17]

Solution:

Let each pond of jelly beans cost $x.

and each pond of almonds cost $y.

Then we can write

$6x+2y=12.......(i)$

$3x+5y=15.....(ii)$

Now solve these two equations together using substitution we get

$3x=15-5y$

$30-10y+2y=12\\
\\
-8y=12-30\\
\\
-8y=-18\\
\\
y=2.25\\
\\
3x=15-5y=15-5*2.25=3.75\\
\\
x=1.25$

Hence each pond of jelly bean cost 1.25$

Each pond of almond costs 2.25$

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3 years ago

Sam earns $912 each week working his full time job. His employer has a 13.6% tax deduction on all monies earned each week. Calcu

Sveta_85 [38]

Sam paid $ 124.032 as tax deduction each week.

<h3>What is an Equation ?</h3>

An equation is a mathematical statement formed when an algebraic expression is equated by an equal sign by a constant or algebraic expression.

It is given that

weekly earnings of Sam is $912

Tax deduction is 13.6 %

Let the amount of Tax deduction is represented by $x

Then the equation formed is

x = 13.6 % 912

x = 13.6 *912 /100

x = $ 124.032

Therefore Sam paid $ 124.032 as tax deduction each week.

To know more about Equation

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2 years ago

Help needed ASAP will give BRAINLIEST and 5 Stars rate

garri49 [273]

(-3, 3) because it is the intersection point.

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3 years ago

What is the range of y = -xsquared2 - 2x + 3?

Flura [38]

Answer:

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3 years ago

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The probability that a toy Raymond picks out of a box is both plush and a dinosaur is 30%. The probability that a toy Raymond pi

GalinKa [24]

Answer:

0.4 = 40% probability that a toy that Raymond picks out of a box is plush given that it is a dinosaur.

Step-by-step explanation:

Conditional Probability

We use the conditional probability formula to solve this question. It is

$P(B|A) = \frac{P(A \cap B)}{P(A)}$

In which

P(B|A) is the probability of event B happening, given that A happened.

$P(A \cap B)$ is the probability of both A and B happening.

P(A) is the probability of A happening.

In this question:

Event A: Dinosaur

Event B: Plush.

The probability that a toy Raymond picks out of a box is a dinosaur is 75%.

This means that $P(A) = 0.75$

The probability that a toy Raymond picks out of a box is both plush and a dinosaur is 30%.

This means that $P(A \cap B) = 0.3$

What is the probability that a toy that Raymond picks out of a box is plush given that it is a dinosaur?

$P(B|A) = \frac{P(A \cap B)}{P(A)} = \frac{0.3}{0.75} = 0.4$

0.4 = 40% probability that a toy that Raymond picks out of a box is plush given that it is a dinosaur.

6 0

3 years ago