All categories

3 years ago

14x - 8 = 6x ???? 8.5 - 3z = -8 ???? 9m + 14 = 2m ????

Mathematics

2 answers:

ella [17]3 years ago

5 0

14x-8=6x
8x=8
x=1

8.5-3z=-8
16.5=3z
z=5.5

9m+14=2m
7m=-14
m=-2. Hope it help!

Ksju [112]3 years ago

4 0

1. subtract the 6x from both sides, and add 8 on both sides. solve for x by dividing.

2. Add 3z onto both sides so that it will cancel out on the left side and be positive on the right side. Also, add 8 on both sides so 3z is the only thing on the right side of the equation. solve for z.

3. Subtract 2m from both sides. Subtract 14 from both sides. SOLVE FOR M :)

You might be interested in

Give the value of x for the equivalent ratio 3:8 x:24

soldier1979 [14.2K]

Answer:

Step-by-step explanation:

3/8=x/24 (cross multiplication)

3*24=8x (we don't need to multiply 3 with 24 bc we will divide both sides by 8 so it will be easier to find the final value)

x=9

7 0

3 years ago

Read 2 more answers

Geometry math show work thanks

Deffense [45]

Part (a)

The angles would stay the same. This is because similar figures keep the same shape, but the size will shrink or grow.

A real world application is to simply move your head closer to the page and the figure will appear to get larger. The angles themselves stay the same but the side lengths will get larger.

====================================================

Part (b)

While the angles stay the same under a dilation operation, the side lengths do not. As the instructions state: "The side lengths are 3 times longer" (paraphrased).

So we multiply each side length in the diagram by 3

DE = 3*JK = 3*4.5 = 13.5
EF = 3*KL = 3*3 = 9
FG = 3*LM = 3*2 = 6
GD = 3*MJ = 3*2.5 = 7.5

Refer to the diagram below. I've used the resize feature to enlarge the image to make figure DEFG

8 0

3 years ago

Two angles are comlementary. the first angle measures x and the second angle measures 3x-10. find x?

ryzh [129]

X=25

4x-10=90
Add 10 to both sides
4x=100
Divide both sides by 4

6 0

3 years ago

You and your friend get the same magazine. You spend $15 for twelve issues. Your friend pays $1.50 per issue but gets the first

Allushta [10]

He will get 12 issues too. Since he spent 15 dollars in total you would divide that by 1.50 to see how many he actually purchased and it comes out to 10 meaning that he got 10 issues with the money. Now he got two free issues so you would add them to the ones he purchased, so 10 + 2 which would equal 12. So in total he got 12 issues. I hope that helps and wasn't confusing.

8 0

3 years ago

A recent study reported that 22% of adults in France admitted to texting or e-mailing while driving. A random sample of 110 Fren

laila [671]

Answer:

Step-by-step explanation:

ported that 22% of adults in France admitted to texting or e-mailing while driving. A random sample of 110 French adults was randomly selected. What is the probability that 26

Using a binomial distribution with mean = n*p = 110*0.22 = 24.2 and variance = n*p*(1-p) = 24.2*(1-0.22) = 18.876

Approximating it to a normal distribution,

$P(x\geq 26)\\\\=P(Z\geq \frac{26-24.2}{\sqrt{18.876} } )\\\\=P(Z\geq 0.41)\\\\=0.3481$

3 0

3 years ago