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3 years ago

Given: 9yº Simplify the expression for y= 3. (show your work and explain your reasoning.)

Mathematics

1 answer:

Leto [7]3 years ago

6 0

The answer you are looking for is 27

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9: Stella picks 8 red flowers and 9yellow flowers. How many flowers does she pick? 10: Stretch your thinking- Noah makes a ten t

mamaluj [8]

For 9: stella picked 17 flowers. Idk about 10

3 0

3 years ago

What times 2 is equal to 20?

alina1380 [7]

X×2=10 X=10÷2 X=5 Proof: 5×2=10

7 0

4 years ago

Read 2 more answers

ABCD is a parallelogram. What is the measure of ∠ACD?

Igoryamba

Step-by-step explanation:

Here

5x+16+7x-3+6x+5 = 180(being sum of triangle)

or, 18x=180-18

or, x= 162/18

so, x = 9

now,

here,

<ACD = <ACB(diagonals of parallelogram bisect eachother)

or, <ACD = 7x-3

or, <ACD = 7×9-3

or, <ACD = 63-3

So, <ACD = 60°

8 0

3 years ago

I NEEDDD HELPPPPP PLEASEEE

elena-s [515]

Answer:

Hope this helped! Please give brainliest to let me know <3

Step-by-step explanation:

Presale tickets (p) are each worth $7: represented in the equation as 7p.

Door tickets (d) are each worth $10: represented in the equation as 10d.

They sold 345 tickets, so p+d=345. They collected $2550, so 7p+10d=2550.

Final answer:

(3) $\left \{ {{7p+10d=2550} \atop {p+d=345}} \right.$

6 0

3 years ago

Find two numbers, if their sum is −11 and their difference is 41

snow_tiger [21]

The larger one is (-11 + 41)/2 = 15.

The smaller one is (-11 -41)/2 = -26.

_____

For two numbers a and b with sum s and difference d, you can write the equations

$a+b=s\\a-b=d$

Then adding the equations and dividing that sum by 2, you get

$(a+b)+(a-b)=(s)+(d)\\2a=s+d\\a=\dfrac{s+d}{2}$

You can subtract the second eqution from the first and get a similar result for the smaller number

$(a+b)-(a-b)=(s)-(d)\\2b=s-d\\b=\dfrac{s-d}{2}$

These are the formulas we used above.

3 0

4 years ago