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2 years ago

Need help solving this problem

Mathematics

2 answers:

Eva8 [605]2 years ago

6 0

The answer is 14 here’s the solution

dimulka [17.4K]2 years ago

4 0

Answer:

17 i think

Step-by-step explanation:

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I'm not sure how to do this please help

IgorLugansk [536]

Answer:

maria will run 1.75 more miles than her goal

Step-by-step explanation:

If you multiply 2.75 to 7 days you will get 19.25. And if you subtract it by 17.5(because that's her goal) you will get 1.75.

So the answer to this question would be:

Maria will run 1.75 more mile than her goal.

7 0

3 years ago

Nick bought apples at a farmers market where 5 apples cost $4.45.

ozzi

Step-by-step explanation:

5 a = $4.45

x1.4

7 apples = $6.23

1 apple = 0.89

9.79 / 0.89 = 11

11 apples

8 0

2 years ago

Read 2 more answers

Given the trinomial, what is the value of the coefficient B in the factored form? 2x2 + 4xy − 48y2 = 2(x + By)(x − 4y) −12 12 −6

Sonja [21]

Answer:

B is 6.

Step-by-step explanation:

We are trying to find a value for $B$ such that:

$2x^2+4xy-48y^2=2(x+By)(x-4y)$ is true for every $x,y$ .

So let's choose $x=0,y=1$ :

$2(0)^2+4(0)(1)-48(1)^2=2(0+B(1))(0-4(1))$

$2(0)+0-48=2(B)(-4)$

$0-48=-8B$

$-48=-8B$

Divide both sides by -8:

$\frac{-48}{-8}=B$

$6=B$

$B=6$

Note: I didn't want to choose y to be 0 because the value of B would disappear from the equation. So you should be able to have chosen any x and y except for y=0 to solve the equation for B.

Check:

So let's check and use foil to multiply out the right hand side.

$(x+6y)(x-4y)$

$x(x)+x(-4y)+6y(x)+6y(-4y)$

$x^2-4xy+6xy-24y^2$

$x^2+2xy-24y^2$

There was a 2 in front of that multplicapltiation:

$2(x+6y)(x-4y)$

$2(x^2+2xy-24y^2)$

$2x^2+4xy-48y^2$

This is exactly what we have on the left hand side of your given equation.

3 0

3 years ago

Help me ASAP!!!!!!!!!!

PilotLPTM [1.2K]

0.05 is 1/10 the value of 0.5

6 0

3 years ago

Read 2 more answers

A recipe of pasta makes enough for eight servings. How many servings can be made using 4/8 of each ingredient in the recipe?

marta [7]

4/8 is the same as 1/2, so half. If you only have 4/8, then half of eight is 4. 4 servings.

6 0

2 years ago