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Anna007 [38]
3 years ago
15

What is the value of x

Mathematics
2 answers:
poizon [28]3 years ago
7 0

Answer: 2x= 40 so 2x20=40

Step-by-step explanation:every triangle has to add up to 180 digrees

65+75+40=180

PSYCHO15rus [73]3 years ago
6 0

Answer:

Step-by-step explanation:

The letter "x" is often used in algebra to mean a value that is not yet known. It is called a "variable" or sometimes an "unknown". In x + 2 = 7, x is a variable, but we can work out its value if we try! A variable doesn't have to be "x", it could be "y", "w" or any letter, name or symbol.

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Sasha is making some shelves which are 75.5 cm long. If the wood she is using is 180 cm long, how many pieces will she need to m
anzhelika [568]

Answer:

3

Step-by-step explanation:

Since the shelves are 75.5cm long, the total length she would be needing is 75.5cm × 6 = 453cm

Now, the length of the wood she is using is 180cm, to get enough length to make the shelves, we would need to divide 453cm by 180cm which gives a value of around 2.51

This is approximately equal to 3 when rounded up to the nearest whole number.

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3 years ago
Mike constructed a quadrilateral POQS. He used a compass and straightedge to accurately construct line segment OS, as shown in t
aliina [53]

Answer:

(A) it's just a guess but its the only answer that fits with the question

Step-by-step explanation:

7 0
3 years ago
Eight oranges cost $1.00.How much will 5 dozen oranges cost?
Nutka1998 [239]
1 dollar is to 8
1:8
so 5 dozen
1 dozen=12
5 dozen=12 times 5=60
1:8 and x:60
1/8=x/60
multiply both sides by 60
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$7.50 is how much you pay
5 0
3 years ago
Read 2 more answers
41) Gabriella invests $8,193 in a retirement
nataly862011 [7]

Answer:

Option C. \$34,252.67  

Step-by-step explanation:

we know that    

The compound interest formula is equal to  

A=P(1+\frac{r}{n})^{nt}  

where  

A is the Final Investment Value  

P is the Principal amount of money to be invested  

r is the rate of interest  in decimal

t is Number of Time Periods  

n is the number of times interest is compounded per year

in this problem we have  

t=18\ years\\ P=\$8,193\\ r=0.08\\n=6  

substitute in the formula above  

A=\$8,193(1+\frac{0.08}{6})^{6*18}=\$34,252.67  

4 0
4 years ago
Which of the following expressions best describes what is modeled on the number line?
hichkok12 [17]

Answer:

4(-1)

Step-by-step explanation:

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