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valentina_108 [34]

3 years ago

13

Cherries cost 4 dollars per pound. Mother bought r lbs and father bought 2 lbs. How much more money did mother spend on cherries

than father?

2 answers:

vazorg [7]3 years ago

4 0

T= the total cost

T=4r+2

Ierofanga [76]3 years ago

3 0

Answer:

4r-8

Step-by-step explanation:

First mother buys r lbs and that means it's 4*r and you simplify that to 4r. So you have that much money right now. You have to subtract 2*4 which can be simplified to 8. That's how you get 4r-8

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Which of the following choices is the x intercept of the equation 2y-x=-6

Rashid [163]

Answer:

$x = 6$

Step-by-step explanation:

Given

$2y-x=-6$

Required

Determine the x intercept

To get the value of x intercept; we simply substitute 0 for y;

i.e. y = 0

$2y-x=-6$ becomes

$2(0)-x=-6$

$0-x=-6$

$-x=-6$

Multiply both sides by -1

$-1 * -x=-6 * -1$

$x=-6 * -1$

$x = 6$

<em>Hence, the x intercept is 6</em>

6 0

3 years ago

What is the width of a rug that is 36 1/4 square feet and 8 3/4 wide

blondinia [14]

Answer: $4\frac{1}{7} ft$

<u>Step-by-step explanation:</u>

Area (A): $36\frac{1}{4} = \frac{4(36)+1}{4} = \frac{144+1}{4} = \frac{145}{4}$

Length (L): $8\frac{3}{4} = \frac{4(8)+3}{4} = \frac{32+3}{4} = \frac{35}{4}$

width (w): W

A = L x W

$\frac{145}{4}$ = $\frac{35}{4}$ x W

$(\frac{4}{35})$ $\frac{145}{4}$ = $(\frac{4}{35})$ $\frac{35}{4}$ x W

$\frac{4(145)}{35(4)} = \frac{145}{35} = \frac{5(29)}{5(7)} = \frac{29}{7} = W$

$\frac{29}{7} = \frac{7(4) + 1}{7} = 4\frac{1}{7}$

8 0

3 years ago

The sum of the angle measures of a quadrilateral is 360°. Write and solve an equation to find the value of x.

Leokris [45]

Given: The shape is a quadrilateral, which means four angles with a sum of 360°. The known measures are 112 and 73, and there are two unknown measures. They are probably identical, considering the fact that they both have the variable x.

Numerically, this would be $112 + 73 + x + x = 360$ .

Simplify.

$(112 + 73) + (x + x)$ = 360

--> $185 + 2x = 360$

Isolate the variable by subtracting 185 from both sides.

$2x = 360 - 185$

--> 2x = 175

If 175 is twice as much as x, then $x = \frac{175}{2}$

x = $87.5$

Plug in the value of x:

$112 + 73 + 2(87.5) = 360$

--> $185 + 175 = 360$

X has an angle measure of 87.5°

3 0

2 years ago

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torisob [31]

Answer:

14

Step-by-step explanation:

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6 0

2 years ago

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valentinak56 [21]

Step-by-step explanation:

$\huge \: 2 \sqrt{x} .4 {x}^{ - \frac{5}{2} } \\ \\ \huge \: = 2.4 {x}^{ \frac{1}{2} } . {x}^{ - \frac{5}{2} } \\ \\ \huge \: = 8 {x}^{ \frac{1}{2} - \frac{5}{2} } \\ \\ \huge \: = 8 {x}^{ \frac{1 - 5}{2} } \\ \\ \huge \: = 8 {x}^{ - \frac{4}{2} } \\ \\ \huge \: = 8. {x}^{ - 2} \\$

4 0

3 years ago