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2 years ago

Julio says, "If you subtract 19 from my number and multiply the difference by - 7, the result is - 28." What is Julio's number?

Mathematics

1 answer:

ra1l [238]2 years ago

4 0

Answer:

Step-by-step explanation:

Basically I did it backwards & opposites:

-28 divided by -7 = 4

4 + 19 = 23

I checked btw and it worked.

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Jared and Pedro walk 1 mile in about 15 minutes. They can keep up pace for several hours. About how far they walk in 65 minutes

VladimirAG [237]

<h2><u>Answer:</u></h2>

Jared and Pedro walked a total of <u>4.3 miles</u>

<h2><u>Step-by-step explanation:</u></h2>

The equation for distance is <u>speed = distance ÷ time.</u>
Rearrange the equation to make distance the subject:

<em>(multiply both sides by time)</em>

<em> </em><u>Distance = Speed × Time</u>

Convert your numbers into suitable units:

1 mile ÷ 15 = <u>0.06m/minute</u>

Finally, substitute the numbers into the equation and solve:

Distance = 0.06 × 65 = <u>4.3miles</u> (rounded to the nearest decimal place)

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2 years ago

what is an equation of the line that passes through the point (5,5) and is perpendicular to the line whose equation is y=5/9x-4

bearhunter [10]

The anwser y=-9/5x + 14

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3 years ago

XYZ has coordinates X(2, 3), Y(1,4), and Z(8,9). A translation maps X to X'(4,7). What are the coordinates for Y' and Z' for thi

Rashid [163]

Answer:

The coordinates are $Y'(x,y) = (3, 8)$ and $Z'(x,y) = (10, 13)$ .

Step-by-step explanation:

First, we have to derive an expression for translation under the assumption that each point of XYZ experiments the same translation. Vectorially speaking, translation from X to X' is defined by:

$X'(x,y) = X(x,y) + T(x,y)$ (1)

Where $T(x,y)$ is the vector translation.

If we know that $X(x,y) = (2,3)$ and $X'(x,y) = (4,7)$ , then the vector translation is:

$T(x,y) = X'(x,y)-X(x,y)$

$T(x,y) = (4,7) - (2,3)$

$T(x,y) = (2, 4)$

Then, we determine the coordinates for Y' and Z':

$Y'(x,y) = Y(x,y) + T(x,y)$

$Y'(x,y) = (1,4) + (2,4)$

$Y'(x,y) = (3, 8)$

$Z'(x,y) = Z(x,y) + T(x,y)$

$Z'(x,y) =(8,9) + (2,4)$

$Z'(x,y) = (10, 13)$

The coordinates are $Y'(x,y) = (3, 8)$ and $Z'(x,y) = (10, 13)$ .

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3 years ago

Randy has two 28.pound blocks of ice for his snow cone stand. if each snow cone.⅔ requires; Pound to ice, how many snow cones ca

Drupady [299]

Answer:

Randy can make 42 snow cones.

Step-by-step explanation:

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3 years ago

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Answer:

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Step-by-step explanation:

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3 years ago