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padilas [110]
3 years ago
15

Help! I don't understand this​

Mathematics
1 answer:
olchik [2.2K]3 years ago
3 0

PQ=5i-4j 3QR+PQ-PQ=11i-4j-(5i-4j)=6i

3QR=6i QR=2i

R=Q+2i R=(4, 1)

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The result of taking 3 from x and multiplying the answer by 4 is the same qs taking 3 from 5 times x
Alekssandra [29.7K]

Answer:

I think it is this:

4(x-3) = x(5-3)

4x-12 = 5x-3x

2x = 12

x = 6

5 0
3 years ago
Ayesha makes the following shapes with cubes of edge 1 cm and 48 of her cubes fill up with the box given below .Find its height?
Sav [38]

Answer:

Step-by-step explanation:

the height is 2 but the width is missing can u pls tell us the area of it so we can find out what is the width. because without the area the width could be any number

7 0
2 years ago
Read 2 more answers
-2/3x + 2.8 = -8.2 what is x
JulsSmile [24]
-2/3x + 2.8 = -8.2 what is x
Add 2.8 on both side of the equation
-2/3x=-11
Divide both side by -2/3
x=33/2

Check: -2/3(33/2)+ 2.8 = -8.2
-11+2.8=-8.2
-8.2=-8.2

Answer is x=33/2
6 0
4 years ago
Which expression means the same as the phrase below?
dimulka [17.4K]
B - (5 x 8) - 3

A is adding 3, not subtracting.
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5 0
3 years ago
It's geometry please help.
oksano4ka [1.4K]

Answer:

BC = 22

Step-by-step explanation:

BD = 67

Bc = 3x - 2

CD = 4x + 13

BC + CD = BD (Given)

3x - 2 + 4x + 13 = 67

3x + 4x -2 + 13 = 67

7x + 11 = 67

7x = 67 - 11

7x = 56

x = 56 ÷ 7

x = 8

now instead of x put 8

Bc = 3x - 2

BC = 3(8) -2

BC = 24 -2

BC = 22

4 0
3 years ago
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