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3 years ago

5

Which step should be completed first to solve the equation ?

1 answer:

Marizza181 [45]3 years ago

4 0

A.

add 12 to both sides the divide 8 by both sides and there is the answer to x

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Whoever gets this right gets brainlyess answer and it's worth 10 points :)

babymother [125]

A=$20.20/10gal=$2.02 per gal

B=$26.04/12gal=$2.17 per gal

C=$28.14/14gal=$2.01 per gal

D=$30.45/15gal=$2.03 per gal

So C is the cheapest per gallon.

3 0

3 years ago

A rectangular board has an area of 648 square centimeters. The triangular part of the board has an area of 162 square centimeter

maksim [4K]

Answer:

25%.

Step-by-step explanation:

Let E be the event that the dart lands inside the triangle.

We have been given that a rectangular board has an area of 648 square centimeters. The triangular part of the board has an area of 162 square centimeters.

We know that probability of an event represents the chance that an event will happen.

$\text{Probability}=\frac{\text{Favorable no. of events}}{\text{Total number of possible outcomes}}$

$\text{Probability that dart lands inside the triangle}=\frac{\text{Area of triangle}}{\text{Area of rectangle}}$

$\text{Probability that dart lands inside the triangle}=\frac{162}{648}$

$\text{Probability that dart lands inside the triangle}=0.25$

Convert into percentage:

$0.25\times 100\%=25\%$

Therefore, the probability that dart lands inside the triangle is 25%.

7 0

3 years ago

Read 2 more answers

What is wrong with this solution

zzz [600]

Answer:

A. -5m/5 does not equal m

Step-by-step explanation:

-5m/5 = -m, not m.

In step 2, both sides should be divided by -5, not by 5.

Answer: A. -5m/5 does not equal m

7 0

3 years ago

In a survey of students , every student studies at least one of the three subjects Maths English and Science . The number of stu

Mandarinka [93]

Answer:

80x2=160 20x3=60 160+60=220

Step-by-step explanation:

5 0

2 years ago

Given the system of equations presented here:

Bumek [7]

ANSWER

The correct answer is option B

EXPLANATION

The equations are

$3x+5y=29---(1)$

and

$x+4y=16---(2)$

When we multiply the second equation by $-3$ , we obtain;

$-3x-12y=-48---(3)$

When we combine this new equation with equation (1).

$-7y=-19$

We can see that $x$ has been eliminated from the equation.

We can then, solve for $y$ and then substitute the result in to any of the equations to find $x$ .

Hence the correct answer is option B

8 0

3 years ago

Read 2 more answers