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3 years ago

PLEASE HELP YOU CAN GET 30 POINTS

1 answer:

7 0

The jelly weighs .3 pounds. the pasta and sauce put together is 2.7 pounds. the bread already weighs 2.4 pounds so 2.7-2.4=.3

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What is 0.15x10^-2 written in scientific notation?

Arada [10]

Step-by-step explanation:

fcgfsykmcsunvdsihjiutt

6 0

3 years ago

Iago is interested in money. He has a collection of bills in his pocket. He finds that he has two fewer $20 bills than he does $

Colt1911 [192]

Let x be the number of $10 bills in Iago pocket.

1. If he has twice as many $1 bills as $10 bills, then he has (2x) $1 bills.

2. He has two fewer $20 bills than he does $10 bills, then he has (x-2) $20 bills.

3. He has three more $5 bills than $10 bills, then he has (x+3) $5 bills.

In total he has $160 that is x·10+2x·1+(x-2)·20+(x+3)·5.

Equate these two expressions and solve the equation:

$x\cdot 10+2x\cdot 1+(x-2)\cdot 20+(x+3)\cdot 5=160,\\ \\10x+2x+20x-40+5x+15=160,\\ \\37x=160+25,\\ \\37x=185,\\ \\x=5.$

Thus, he has

5 bills for $10;
10 bills for $1;
3 bills for $20;
8 bills for $5.

3 0

3 years ago

Given that θ=<img src="https://tex.z-dn.net/?f=cos%5E%7B-1%7D%20%28%5Cfrac%7B3%7D%7B5%7D%20%29" id="TexFormula1" title="cos^{-1}

GalinKa [24]

What? Can you re-type this?

5 0

3 years ago

Find y when x=77, if y varies inversly as x, and y = 23 when x = 115.

Eduardwww [97]

The required value of y is 2645 / 77 when x = 77.

Step-by-step explanation:

1. Let's check the information given to answer:

if y varies inversely as x, and y = 23 when x = 115. Find y when x=77

2. What is y when x = 77?

As the statement "y varies inversely as x" translates into y = k/x

If we let y = 23 and x = 115, the constant of variation becomes

23 = k ÷ 115

k = 23 × 115

k = 2645

Thus the specification equation is y = 2645 ÷ x . Now, letting x = 77, we obtain

y = 2645 ÷ x

y = 2645 ÷ 77

So, The required value of y = 2645 / 77 when x = 77

#learnwithBrainly

7 0

3 years ago

If AC = 3, BC = 5, and AB = 7, find AD: 2 5/8 4 1/5 4 3/8 11 2/3

Vesna [10]

Answer:

1. $2\frac{5}{8}$

Step-by-step explanation:

We can see that CD is angle bisector, So we will use angle bisector theorem which states that the angle bisector of an angle of a triangle divides the opposite side in two segments that are proportional to the other two sides of the triangle.

We can set up an equation as:

$\frac{AC}{AD}=\frac{BC}{BD}$

Upon substituting our given values we will get,

$\frac{3}{AD}=\frac{5}{(7-AD)}}$

Cross multiplying our equation we will get,

$5AD=3*(7-AD)$

$5AD=21-3AD$

$5AD+3AD=21$

$8AD=21$

$AD=\frac{21}{8}$

$AD=2\frac{5}{8}$

Therefore, the length of AD is $2\frac{5}{8}$ units and 1st option is the correct choice.

6 0

3 years ago