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ICE Princess25 [194]
3 years ago
12

Yolanda's age is 5 years less than twice Marco's age. If Yolanda is 15 years old, how old is Marcus? Choose the answer below tha

t is a viable solution to this problem. A. 10 B. 8 C. 5 D. 1
Mathematics
1 answer:
nasty-shy [4]3 years ago
4 0

Answer:

(A) 10

Step-by-step explanation:

Let age of Marco's be "x" years

then according to question

Yolanda age will be "2x - 5"

Also in the question it is given that age Yolanda is 15 years.

then, 2x - 5 = 15

Adding 5 both sides of the equation, we will get

        2x = 20

Dividing both sides of the equality by 2, we get

         x = 10

therefore, Age of Marcus will be 10years

Option (A) is the correct option.

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Elena walked 12 miles. Then she walked `\frac{1}{4}` that distance.  How far did she walk all together?  
zzz [600]

Answer:

15 miles

Step-by-step explanation:

12 + ( 1/4 x 12) = ?

12 + 3 = 15

7 0
3 years ago
Read 2 more answers
The area of parallelogram WXYZ is approximately 45 square units.
neonofarm [45]

Answer:

Option (4)

Step-by-step explanation:

Area of a triangle = \frac{1}{2} (a.b.\text{Sin}\theta)

Where a and b are the sides of a triangle and θ is the angle between the sides a and b.

By this rule,

Area of ΔWZY = \frac{1}{2}(\text{WZ}).(\text{YZ}).\text{Sin}(115)

45 = \frac{1}{2}(\text{YZ}).(10).\text{Sin}(115)

9 = (YZ).Sin(115)°

YZ = \frac{9}{\text{Sin}(115)}

YZ = 9.93

Perimeter of parallelogram WXYZ = WX + XY + YZ + WZ

                                                         = 9.93 + 10 + 9.93 + 10

                                                         = 39.86

                                                         ≈ 40 units

Therefore, perimeter of the parallelogram is 40 units.

Option (4) is the answer.

4 0
2 years ago
If f(x) contains point (-3, 7), which point is definitely on f^-1(x)?
Vlad1618 [11]
B  inverse you swap x and y
3 0
3 years ago
Is <img src="https://tex.z-dn.net/?f=1-2x%5E%7B2%7D" id="TexFormula1" title="1-2x^{2}" alt="1-2x^{2}" align="absmiddle" class="l
Schach [20]

Answer:

standard form for a quadratic expression

Step-by-step explanation:

This is a quadratic expression.  If you want this expression in standard form, write the terms in descending order of powers of x:  -2x^2 + 1.

This   -2x^2 + 1   has not yet been factored.

-2x^2 + 1 is in standard form.

7 0
2 years ago
How do you do this u don't understand
Elden [556K]
You have to make the denominator the same: 40
35/40 + 32/40 = 67/40
7 0
3 years ago
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