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Morgarella [4.7K]

3 years ago

7

Pls help me and can you give tips on exponents??!

1 answer:

Marina CMI [18]3 years ago

7 0

Answer:

Basically, exponents represent the number of times you multiply that number by itself. For example, 3² = 9, because you multiply 3 times 3.

Step-by-step explanation:

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five

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3 years ago

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Bagels: six in a bag Apples: eight in a bag Cookies: twelve in a box Juice Boxes: nine in a box Find the least number of package

morpeh [17]

Bagels 6x12=72
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cookies 12x6=72
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72/4 kids is 18 lunches

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3 years ago

Each bucket holds 212

serg [7]

Answer:

5088

Step-by-step explanation:

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5 0

3 years ago

Roberta has $10,540 to invest. She plans to invest her money in certificates of deposit (CDs) that have 2.1% interest, a stock p

ira [324]

Answer:

The amount invested in CDs is $1,340

The amount invested in the stock portafolio is $6,900

The amount invested in the saving accounts is $2,300

Step-by-step explanation:

Let

x ---->the amount invested in CDs at 2.1%

y ---> the amount invested in the stock portfolio at 2.5%

z ---> the amount invested in the savings account at 1.5%

$x+y+z=10,540$ ----> equation A

$z=\frac{1}{3}y$ ----> equation B

substitute equation B in equation A

$x+y+\frac{1}{3}y=10,540$

$x+\frac{4}{3}y=10,540$

$x=10,540-\frac{4}{3}y$ ----> equation C

we know that

The total interest earned by the three amount must be equal to $231.69

so

$0.021x+0.025y+0.015z=231.69$ ----> equation D

substitute equation B and equation C in equation D

$0.021(10,540-\frac{4}{3}y)+0.025y+0.015(\frac{1}{3}y)=231.69$

solve for y

$221.34-0.0315y+0.025y+0.005y=231.69$

$0.0015y=231.69-221.34$

$0.0015y=10.35$

$y=\$6,900$

<em>Find the value of x</em>

$x=10,540-\frac{4}{3}(6,900)$

$x=\$1,340$

<em>Find the value of z</em>

$z=\frac{1}{3}(6,900)$

$z=\$2,300$

7 0

4 years ago

Lesson 1 Homework

Nonamiya [84]

128

This question requires us to solve an infinite GP

As we can see the first unit is 16 wide, then 8, then 4 and so on; this can be written as

$64(1,0.5,0.25,0.125,....$ $\infinity$ ∞ $)$ (64 used as 16*4 = 64 is the area of the first rectangle)

We have $S$ ∞ $=a/(1-r)$ where a is the first term and r is the common ratio of the GP for summing an infinite GP.

here we have

$a=64 \\ r=0.5$

Therefore

$S$ ∞ $=\frac{64}{1-0.5} \\\\=\frac{64}{0.5} \\\\=128$

Learn more about GP here

brainly.com/question/16954106

#SPJ9

5 0

2 years ago