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3 years ago

Rachel, Tammy, and Bryan all bought something at the mall. Rachel's necklace cost 20% more than Tammy's shoes.

1 answer:

3 0

Tammy's shoes cost $ 30

Rachels necklace cost 20% more then Tammy's shoes....20% more then 30......30(1.20) = $ 36

Bryans video cost 30% more then Rachels necklace....30% more then 36...36(1.30) = $ 46.80 <===

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3 years ago

What is 0.000 002 in standard form

Vsevolod [243]

Answer:

$0.000 002 = 2 \times {10}^{ - 6}$

Step-by-step explanation:

It is already in standard form and can be expressed in scientific form as:

$0.000 002 = 2 \times {10}^{ - 6}$

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3 years ago

Read 2 more answers

A rectangle is three centimeters.longer than it is wide. if its length were to be decreased by two centimeters, its area would d

Scorpion4ik [409]

Given/equations formed from text:
I: l=w+3
II: A=l*w
III: new area B=(l-2)*w
IV: B=A-30

substitute l in II with I to remove l:
II': A=l*w=
(w+3)*w=
w^2+3w

substitute l in III with I to remove l:
III': B=(l-2)*w=
(w+3-2)*w=
(w+1)*w=
w^2+w

substitute A and B from II' and III' into IV:
B=A-30
w^2+w=w^2+3w-30
30=2w
w=15

insert w=15 into I:
l=15+3=18
->
A) dimensions of full size rectangle are width 15 and length 18
dimensions of reduced size rectangle are width 15 and length 16

B) full size: 15*18=10*18+5*18=180+90=270cm^2
reduced size: 15*16=10*16+5*16=160+80=240cm^2

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4 years ago

You buy clothing at a sale you buy sneakers at 2/3 of their original price of $60 a sweater at 7/10 of its original price of $35

ozzi

Answer:

a. We spent all together 40.2+24.5+37.8=$102.50.

b. We saved 19.8+10.5+7.2=$37.50

c. $\frac{102.50}{140}$

Step-by-step explanation:

To find the amount we spend, we multiply the original price by the decimal conversion of each fraction. Then we add the amounts together.

Sneakers cost $60 and you bought them at 2/3=0.6666....

60(0.67)=$40.20 and saved $19.80

Sweater costs $35 and you bought it at 7/10=0.7

35(0.7)=$24.50 and saved $10.50

A jacket costs $45 and you bought it at 5/6=0.8333...

45(0.84)=$37.80 and saved $7.20

We spent all together 40.2+24.5+37.8=$102.50.

We saved 19.8+10.5+7.2=$37.50

We could of spent paying regular price 60+35+45=$140. To find the fraction we place the total we actually paid over the total regular price.

$\frac{102.50}{140}$

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4 years ago

Read 2 more answers

What is the expanded form of 132.6

sveta [45]

Answer:

Step-by-step explanation:

100 +30+2+.60 or .6

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4 years ago