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Bas_tet [7]
3 years ago
8

7 Simplify 3x + 6y + X -Y a) 4x+7y b) 4x-5y c) 10xy d) 4x+5y Question 7

Mathematics
1 answer:
pogonyaev3 years ago
6 0

Answer:

D would be your answer. I used my algebra calculator and it shows you step by step how to do the problem

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What is the value of the expression when a = 5 and b = 2? 2a+b−3 A.6 B.9 C.11 D.24
Studentka2010 [4]

2a + b - 3

2(5) + 2 - 3

10 + 2 - 3

12 - 3 = 9

Answer - 9

Hope this Helps!!

6 0
3 years ago
Read 2 more answers
The difference of two numbers is 33. The sum of the first number and four times the second number is -2. What is the larger of t
defon

Answer:

The larger of the two is 44.67

Step-by-step explanation:

let the first number=x

let the second number=y

We can derive a system of equations using the mathematical statements

Their sum is 33:

x+y=33( call this equation 1)

Sum of first number and four times the second is -2:

x+4y=-2(call this equation 2)

Since the integer coefficients of x in both equations are the same we can quickly subtract one from the other to eliminate it

For this explanation, I choose to subtract equation 1 from 2

(x+4y=-2)-(x+y=33)=3y=-35

y=-35/3

Now plug in the value of y into any equation for that of x. Say we plug into equation 1

x+(-35/3)=33

x-35/3=33( multiply through by 3)

3x-35=99

3x=99+35

3x=134

x=134/3

Therefore,x=134/3 or 44.67 and y=-35/3 or -11.67

7 0
3 years ago
Find the value of x so that the shaded region is a gnomon to the white rectangle.
RUDIKE [14]

Based on the shaded region, the value of x which makes this region a gnomon is x = 1.

<h3>What is value of x?</h3>

Based on the dimensions of the side that isn't shaded, and the dimensions of the side that is shaded, the value of x can be found as:

3/ 6 = (1 + 3) / (x + 6 + x)

1/2 =  4 / (6 + 2x)

6 + 2x = 4 / (1/2)

2x = 8 - 6

x = 2/2

x = 1

Find out more on shaded regions at brainly.com/question/9767762.

#SPJ4

4 0
1 year ago
Can someone plz help me with this and i need the drawing to show work
Burka [1]

Answer:

20.833 feet

Step-by-step explanation:

The light reflects off the mirror at the same angle that it hits it at.  So the triangle formed by the beam and mirror is similar to the triangle formed by Kevin and the mirror.

Therefore, we can write and solve a proportion.

h / 10 = 6.25 / 3

h = 20.833

The beam is 20.833 feet tall.

4 0
4 years ago
A shopkeeper selling an article at a discount of 25% looses Rs.125.If he allows 10% discount he gains Rs 250.Find the marked pri
adell [148]

Answer:

i dont know

but try you will get the answer

8 0
3 years ago
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