3 years ago

How do you get the answer for this dilation problem?

Mathematics

1 answer:

ch4aika [34]3 years ago

8 0

Dilate by 1/4 divide all the points

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5.71428571429

Step-by-step explanation:

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Each marble bag sold by hans marble company contains 7 yellow marbles for every 5 blue marbles. if a bag has 35 blue marbles, ho

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3 years ago

Julia is going to the store to buy candies. Small candies cost $4 and extra-large candies cost $12.She needs to purchase at leas

BartSMP [9]

Answer:

Small candies $=9$

Extra large candies $=12$

Step-by-step explanation:

Let small candies $=x$

Extra large candies $=y$

the number of candies is at least $20$ .

$x+y\geq20$

Cost of $1$ small candy $=\$4$

Cost of $1$ extra large candy $=\$12$

but she has only $\$180$ to spend

$4x+12y\leq180$

Solve for

$x+y=20.......(1)\\4x+12y=180.....(2)\\eqn(2)-eqn(1)\times4\\8y=100\\y=\frac{100}{8} \\y=\frac{25}{8} \\from\ eqn(1)\\x+\frac{25}{2}=20\\ x=20-\frac{25}{2} \\x=\frac{15}{2}$

Since number of candies should be integer.

let $x=7,y=13$

total spend $4\times7+12\times13=184$ which is more than $\$180$ , so this combination is not possible.

$let\ x=8,y=12\\8\times4+12\times12=176$

She has $\$4$ more so she can buy $1$ more small candy.

Hence small candy $=9$

extra large candy $=12$

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2 years ago

Can you pls help me thank you have a good day

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Answer:

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3 is the constant

2 is the rate at which recieves

So, y = 2x + 3

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I just did it and got it right

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