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quester [9]
3 years ago
11

A=2 b=3 c=4 1) ab - c = 2) 6c - 2b= 3) a + b - c + 5 = 4) 7c - 2a =

Mathematics
2 answers:
bekas [8.4K]3 years ago
7 0

Step-by-step explanation:

1)ab-c

=2(3)-4

=6-4

=2

2)6c-2b

=6(4)-2(3)

=24-6

=18

3)a+b-c+5

=2+3-4+5

=10-4

=6

5)7c-2a

=7(4)-2(2)

=28-4

=24

Lady_Fox [76]3 years ago
4 0

Answer:

1. 2×3=6 6-4= 2

2.6×4=24. 24-6=18

3.2+3=5. 5-4=1. 1+5=6

4. 7×4=28. 28-4=24

Step-by-step explanation:

when a number is next to a letter it means to multiply

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A fruit stand has 200 apples. They order 19 bags with 12 apple each. They sell 42 bags that have 8 apples each. The owner says t
solniwko [45]

Answer:

The owner's estimate is reasonable. They ordered about 240 apples and sold about 320 so they should have about 80 fewer apples than they started with.

Step-by-step explanation:

Given that:

Number of apples already available with Owner = 200

Number of bags of apples ordered with 12 apples each = 19

Number of apples ordered = 12 \times 19 = 228

OR

Rounding off 19 to 20:

Number of apples ordered  = 12 \times 20 = 240

Around <em>240 apples were ordered</em>.

Number of bags of apples with 8 apples each, sold = 42

Number of apples sold = 42 \times 8 = 336

Rounding off 42 to 40, <em>number of apples sold = around 320</em>

<em></em>

Therefore, 80 more apples were sold than that of apples bought.

So, according to the estimate, there will be 80 fewer apples left than they started with.

<em>Correct answer is:</em>

The owner's estimate is reasonable. They ordered about 240 apples and sold about 320 so they should have about 80 fewer apples than they started with

4 0
2 years ago
If z is inversely proportional to r, and z= 32 when r=1.5, find r when z=8.
lions [1.4K]
Inversely proportional: z = k/r
k = 32 * 1.5 = 48
Plug that into equation
8 = 48/r
Multiply both sides by r
8r = 48
Divide by 8
r = 6
8 0
2 years ago
Can someone please helppp will give you lots of points and brainliest
harkovskaia [24]

4. SOLVE FOR X:

Using the Alternate Interior Angles Theorem, we know that the 67 degree angle is congruent with the (12x - 5) degree angle. With this information, all I have to do is set the two equal to each other and solve for x.

67 = 12x - 5

67 + 5 = 12x - 5 + 5

72/12 = 12x/12

6 = x

x = 6

SOLVE FOR Y:

Using the Vertical Angles theorem, we know that angle y must be congruent to the 67 degree angle.

y = 67 degrees.


5. SOLVE FOR Y:

Alternate exterior angles: 6(x - 12) = 120

6x - 72 + 72 = 120 + 72

6x/6 = 192/6

x = 32

SOLVE FOR Y:

6((32) - 12) + y = 180

192 - 72 + y = 180

120 + y - 120 = 180 - 120

y = 60

8 0
3 years ago
Read 2 more answers
Bob makes a drawing of a garden that has a scale of 5 cm for each meter. If the garden will be 15 m long, how long is the drawin
faust18 [17]
It would be 75 centimeters long
5 0
3 years ago
Read 2 more answers
A tailor cuts 2 3/4 yards from a roll of fabric to make one curtain.
Otrada [13]

Answer:

You know, I really don’t like the 312 notation, I think it’s a lot more confusing than writing 3.5 or even 72. I’ll use the latter here, to make the math easier.

Okay, Erica started with 72 yards of fabric. Then, she uses 2/3 of that. But how much is 23 of 72? All you have to do is multiply!

72⋅23=146=73

Alright, she used 73 yards of fabric in the curtain, if you take that out of the total how much will be left?

72−73=21−146=76

Here it is, she will have 76 yards of fabric left. If you want the answer in that notation, it is 116.

You know, I really don’t like the 312 notation, I think it’s a lot more confusing than writing 3.5 or even 72. I’ll use the latter here, to make the math easier.

Okay, Erica started with 72 yards of fabric. Then, she uses 2/3 of that. But how much is 23 of 72? All you have to do is multiply!

72⋅23=146=73

Alright, she used 73 yards of fabric in the curtain, if you take that out of the total how much will be left?

72−73=21−146=76

Here it is, she will have 76 yards of fabric left. If you want the answer in that notation, it is 116.

7 0
2 years ago
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