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3 years ago

8

A student estimated a mass for by 325g, but upon carefully mesuring it, found the actual mass to be 342g. What is the percent er

ror?

1 answer:

vlada-n [284]3 years ago

7 0

Answer:

5.2307 %

Step-by-step explanation:

(acutal mass- estimated mass) / ( estimated mass)

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2. Lisa can buy orange juice in 0.24-liter cartons or 0.48-liter cartons. Which is closest to the

aev [14]

Answer:

i think its 1.7 if this is correct can u mark me brainliest

Step-by-step explanation:

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2 years ago

A gym has 2kg and 5kg weights. There are 10 disks in all. The total weight of 2kg and 5kg disks is equal to 29kg. Find the numbe

Simora [160]

Answer:

no of 5 kg disks is 3, and no of 2 kg disks is (10-3) i.e. 7

Step-by-step explanation:

Let the no of 2kg disks be a.

Let no of 5 kg disks be b.

2a+5b=29

a+b=10

Using substitution, we have

2(10-b) + 5b=29

20-2b+5b=29

20+3b=29

3b=9

b=3

So no of 5 kg disks is 3, and no of 2 kg disks is (10-3) i.e. 7

6 0

3 years ago

garrett wants to build an addition to his living room. the room currently has a length of 13 feet and width of 10 feet. if he cr

marta [7]

Answer: $1,170ft^2$

Step-by-step explanation:

We know that the area of the living room can be calculated with the formula for find the area of a rectangle. This formula is:

$A_1=l_1*w_1$

Where:

$l_1$ is the lenght of the original living room, and $w_1$ is the width of the original living room.

If he creates the addition that causes the dimensions to triple, then the new area of Garrett’s living room is:

$A_2=(3l_1)(3w_1)\\A_2=(3*13ft)(3*10ft)\\A_2=1,170ft^2$

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3 years ago

Find the area of the parallelogram shown below.<br> 5<br> 4<br> square units

alina1380 [7]

Length times width and that will get you an answer

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3 years ago

Find the measure of the missing angles. Both of them is wrong. (Picture included)

Ymorist [56]

Answer: you need to add them together then add BAND D to the same expersion

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3 years ago