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3 years ago

Please help me with Questions 1 and 3 thank you

Mathematics

1 answer:

notka56 [123]3 years ago

5 0

1) In a proportion: y/x=k

k is your constant of proportionality.

x is your independent variable and y is your dependent variable.

Since you need 3 oz of flour for each 2 oz of sugar, y=3 and x=2.

So k=1.5 (3/2)

a) y/x as a showed above. This question is very similar to #1.

b) y/x=k

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Three ingredients A, B, and C are mixed by weight in the ratio of 1:2:3 respectively to make a mixture. How many pounds of ingre

cluponka [151]

Answer:

B. 24

Step-by-step explanation:

just took the quiz and got it right

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3 years ago

Erica solved the equation −5x − 25 = 78; her work is shown below. Identify the error and where it was made. −5x − 25 = 78 Step 1

raketka [301]

Hi there! Her mistake is in step 1.

She subtracted -25 by 25. -25 - 25 = -50

What she SHOULD have done was add 25 to each side. This obeys the property of reciprocals.

-25 + 25 = 0

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4 0

3 years ago

Read 2 more answers

The length of a rectangle is 10 inches longer than its width. If the area of the rectangle is 144 square inches, what are its di

vazorg [7]

Answer:

L= 18 in

W= 8 in

Step-by-step explanation:

Step one:

The length of a rectangle is 10 inches longer than its width

let the width be x

so the lenght is x+10

the area of the rectangle is 144 square inches

Step two:

$Area= L*W\\\\144=x(x+10)\\\\144=x^2+10x\\\\x^2+10x-144=0$

the factors for the quadratic expression is

18 and -8

$x^2+18x-8x-144=0\\\\x(x+18)-8(x+18)=0\\\\x-8=0\\\\x=8\\\\x+18=0\\\\x=-18$

the width is 8 in

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6 0

3 years ago

IM just a little bit slow

viva [34]

Answer:

71°

Step-by-step explanation:

31-3x+19x-5=90

16x=90-26

16x=64

x=4

m<R=19x-5 = 19(4)-5 = 76-5 = 71

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3 years ago

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Plz help me I'm little

VMariaS [17]

A number greater then 714,587 is 714,590

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3 years ago