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Sindrei [870]
4 years ago
14

A rectangle is a _____. a. quadrilateral b. square c. parallelogram d. rhombus

Mathematics
1 answer:
Pavlova-9 [17]4 years ago
8 0
Both A and C is true. However, even though a rectangle can be a parallelogram, a parallelogram is a quadrilateral, so the answer is A.
I hope this helps!
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Rob is saving to buy a new MP3 player. For every $13 he earns babysitting, he saves $9. On Saturday, Rob earned $78 babysitting.
stealth61 [152]

Answer:

54$

Step-by-step explanation:

We know that for each 13$ Rob earns babysitting, he saves 9$. Thus, we can separate the money he earns into groups of 13, and for each group of 13, we can add 9$ to his savings.

Assume that Rob has 78$ lying on a table. He grabs 13 of them, leaving 65, and puts 9$ to the side for savings. He does this 5 more times (as 65 divided by 13 is 5, so Rob would make 5 groups of 13 out of his 65$ that is left), meaning that he now has 5+1  (the original group) = 6 groups of 9. 9*6=54, so he saves 54$. Please let me know if you have any further questions!

7 0
4 years ago
How many liters of water vapor can be made from 34.0 grams of oxygen gas and excess amount of hydrogen gas at STP?
AVprozaik [17]
8.2 L is the correct answer
7 0
3 years ago
Which sequence or sequences are correct and why?
inessss [21]

Answer:

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4 0
3 years ago
1. Simplify the following expressions.<br> Part A:<br> 2x3y3<br> 4y²
Vladimir79 [104]

Answer:

204xy^(3)

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
A candy store makes a 9-pound mixture of gummy candy, jelly beans, and hard candy. The cost of gummy candy is $2.00 per pound, j
Musya8 [376]

Let

x--------> the amount of gummy candy in pounds

y--------> the amount of jelly beans in pounds

z-------->  the amount of hard candy in pounds

we know that

x+y+z=9 --------> equation 1

2x+3y+3z=23 --------> equation 2  

x=2y --------> equation 3  

Substitute equation 3 in equation 1 and equation 2

[2y]+y+z=9 -----> 3y+z=9 ------> equation 4

2[2y]+3y+3z=23 -----> 7y+3z=23 ------> equation 5  

using a graphing tool ------> Solve the system of equations

see the attached figure

the solution is the point (3,2)

z=3\ pounds\\y=2\ pounds

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

x=2y

x=2*2=4\ pounds

therefore

<u>the answer is</u>

the amount of gummy candy is 4\ pounds

the amount of jelly beans is 2\ pounds

the amount of hard candy is 3\ pounds

8 0
3 years ago
Read 2 more answers
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