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3 years ago

DVDs are on sale for $29 each. Felipe writes the expression 2 x 29 to find the cost in dollars of buying 2

Mathematics

1 answer:

Diano4ka-milaya [45]3 years ago

6 0

Answer:

1(29 + 29)= a

Step-by-step explanation:

If the DVD costs 29$, and he buys 2, then you will just add them and multiply them by one.

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What is an equation of the line that passes through the points (3,-3) and (-3,-3)?

victus00 [196]

First find the gradient of the line
Change in y/change in x
-3–3/-3-3
0/-6
=0 ( so the gradient m is equal to zero)

Y=0x+c

Input the coordinates of one point to find c

-3=(0*3)+c
-3=c

So the equation is
Y= -3

3 0

3 years ago

What value of t makes (-2) +(-11) = t a true sentence?

Bas_tet [7]

Answer:

t = -13

Step-by-step explanation:

Given expression:

(-2) +(-11) = t

Solving for t:

-13 = t
t = -13

8 0

3 years ago

Describe the error(s) that occurred and show the correct solution.

RideAnS [48]

Answer:

$-x^{2}+4x$

Step-by-step explanation:

we have

$(x^{2}+x)-(2x^{2} -3x)$

step 1

Eliminate the parenthesis

$x^{2}+x-2x^{2} +3x$

The symbol of the term 3x is incorrect, must be positive instead of negative

$-(-3x)=+3x$

Group terms that contain the same variable

$(x^{2}-2x^{2})+(x+3x)$

Combine like terms

$-x^{2}+4x$

6 0

2 years ago

27 over X =3 and 5y = 35 what is the value of <br> X• Y?

diamong [38]

Answer:

Step-by-step explanation:

$\frac{27}{x} = 3$

divide, 27 ÷ 3

you'll get 9, so

x = 9

Next part

5y = 35

divide both sides by 5 to isolate y,

5y ÷ 5 = 35 ÷ 5

y = 7

x = 9 and y = 7

Then let's add the numbers to our equation ( x × y)

9 × 7

7 0

2 years ago

A TV has a listed price of $708.99 before tax. If the sales tax rate is 9.75% , find the total cost of the TV with sales tax inc

lakkis [162]

Answer:

$778.12

Step-by-step explanation:

Before Tax Price: $708.99

Sale Tax: 9.75% or $69.13

After Tax Price: $778.12

3 0

2 years ago