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3 years ago

I need help please help

Mathematics

2 answers:

Svetach [21]3 years ago

5 0

The answer is 55 because it has

blagie [28]3 years ago

3 0

Answer:

Step-by-step explanation:

lol

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Jeff is baking a cake. The recipe says that he has to mix 32 grams of vanilla powder to the flour. Jeff knows that 1 cup of that

ValentinkaMS [17]

1 / 128 = (2/3) / x....1 cup to 128 grams = 2/3 cups to x grams
cross multiply
(1)(x) = (128)(2/3)
x = 256/3
x = 85.3

he went over...
85.3 - 32 = 53.3....he went over by 53.3 (or 53 1/3) grams

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4 years ago

License plate numbers come in a variety of styles. (Ignore the fact that some choices of letters could not be used because they

avanturin [10]

Five digit is the answer

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3 years ago

Given ABC find the values of x and y. In your final answer, include all of your calculations.

kow [346]

So with this, we will be using proportions. To solve for x, our proportion will be $\frac{x}{6} =\frac{6}{x-9}$

Firstly, cross-multiply: $x^2-9x=36$

Next, subtract 36 on both sides: $x^2-9x-36=0$

Next, replace -9x with 3x-12x $x^2+3x-12x-36=0$

Next, factor x^2+3x and -12x-36 separately: $x(x+3)-12(x+3)=0$ . After, rewrite it as $(x-12)(x+3)=0$

Next, solve for x separately in the two parentheses:

$x-12=0\\ x=12$

$x+3=0\\ x=-3$

Since we can't have a negative length, x = 12.

To solve for y, our proportion will be $\frac{y}{9} =\frac{12}{y}$

Firstly, cross-multiply: $y^2=108$

Next, just square root each side, and your answer will be (rounded to hundredths) $y=10.39$

In short, x = 12 and y = 10.39.

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3 years ago

If one mile equals 5,280 feet, how many feet are in 7 miles

Yuliya22 [10]

You multiply 5280 times 7 and u get 36960

8 0

4 years ago

Read 2 more answers

Solve for x<br><br>km/3 -2x=4<br><br>(literal equations)

larisa86 [58]

Answer:

3/-2

Step-by-step explanation:

(3x) km/3 -2x=4 (x3) times 3 on both sides because you need to get the x by itself and your dividing so the opposite of dividing is multiplying.

9km - 2x = 12

-9 -9 subtract on both sides

-2x = 3

-2 -2 divide on both sides.

so x= 3/-2

I'm in algebra too, and i'm relearning it, so hope i have helped you in anywy and if i haven't I'm sorry.

5 0

3 years ago