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umka2103 [35]
3 years ago
10

Solve a/-1.2 = -0.4. a=?

Mathematics
1 answer:
adell [148]3 years ago
6 0

Answer:

a = 0.48

Step-by-step explanation:

Multiply all terms by the same value to eliminate fraction denominators

then simplify

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Plz help i will mark you brainlist this is due in 5 minutes
pshichka [43]

Answer: -10 degress is colder than -4

so the answer will be: C (-10 < -4)

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Pqr is similar to xyz what is the perimeter of xyz? A.21cm B.63cm C. 105cm D.126cm
skelet666 [1.2K]

Answer:

option D. 126 cm

Step-by-step explanation:

step 1

Find the scale factor

we know that

If two figures are similar, then the ratio of its corresponding sides is proportional and this ratio is called the scale factor

In this problem

Triangles PQR and XYZ are similar by AA Similarity Theorem

so

\frac{XY}{PQ}=\frac{YZ}{QR}=\frac{XZ}{PR}

Let

z ---> the scale factor

z=\frac{XY}{PQ}

substitute the given values

z=\frac{30}{5}=6

step 2

Find the perimeter of triangle XYZ

we know that

If two figures are similar, then the ratio of its perimeters is equal to the scale factor

Let

z ----> the scale factor

p_1 ----> the perimeter of triangle XYZ

p_2 ---> the perimeter of triangle PQR

so

z=\frac{p_1}{p_2}

The perimeter of triangle PQR is

p_2=5+10+6=21\ cm

we have

z=6\\p_2=21\ cm

substitute

6=\frac{p_1}{21}

p_1=6(21)=126\ cm

therefore

The perimeter of triangle XYZ is 126 cm

5 0
3 years ago
The mean of a, b, c, and d is 9 and the mean of a, b, c,
kenny6666 [7]

mean of e and f is 18

4 0
3 years ago
How do I solve for A??
Alja [10]
1)Add up the numbers and variables.
2) Triangles equal 180 degrees.
3)Subtract the total of the numbers and 180.
4) Then divide by the variable.

X= -10
3 0
3 years ago
a man makes a profit 15% by selling an article for rs.250. for what amount should he sell it to make profit of 38%​
Ulleksa [173]

Answer:

$300

Step-by-step explanation:

original price = $250

the profit= 15%

ok now let the cost price of article be ₹ x

x + 15% of x = 250

1.15x = 250 => 115x ÷ 100 = 250

115x = 25000 => x = 25000 ÷ 115

x = 5000/ 23

cost price of article = ₹5000/ 23

required profit = 38%

= 38% of 5000/ 23 = 0.38 × 5000/ 23

= 1900/ 23

the required will be selling price to gain about 38%

= cost price + required profit which is

= (5000/ 23) + (1900/ 23)))

= 6900/ 23 = $300

Answer:  now its required selling price = $300

5 0
2 years ago
Read 2 more answers
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