2z-18-4z=-8 what is the value of z

Answers

Answer 1

Answer:

$\bold{Hey\ there!} \n \bold{Simply\ both\ sides\ of\ your\ equation\downarrow} \n \bold{2z+(-4z)+(-18)=-8} \n \bold{Now, \ you \ have\ to \underline{Combine\ your\ like\ terms}\downarrow} \n \bold{\bullet \ 2z\ \& \ -4z}\n \n \bold{2z+(-4z)=-2z}\n \bold{-2z-18=-8}\n \bold{Nextly,\ you\ have\ to\ \underline{add}\ by\ 18\ on\ your\ sides\downarrow} \n \bold{-2z-18+18=-8+18} \n \bold{Cancel:-18+18} \n \bold{Keep:-8+18} \n \bold{\underline{Divide}\ by\ -2\ on\ your\ sides\downarrow}\n \bold{(-2z)/(-2)}$ $\bold{= (10)/(-2)} \n \bold{Cancel: (-2z)/(-2)} \n \bold{Keep:(10)/(-2)} \n \n \boxed{\boxed{\bold{Answer: z=-5}}}\checkmark \n \n \n \bold{Good\ luck\ on\ your\ assignment\ \& \ enjoy\ your\ day!}\n \n \frak{LoveYourselfFirst:)}$

Answer 2

Answer:

Answer- z is equal to -5

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you want to determine how many students consider math to be their favorite subject. you randomly survey 75 students. 33 students consider math their favorite subject and 42 do not. you conclude 40% of students at your school consider math to be their favorite subject. Is that valid?

Answers

No, is not valid.
33 is 44% of 75
33 ÷ 75 = 0.44
0.44 = 44%

(Use photo ) find the length of the hypotenuse in each right triangle. Please show work and round to the nearest tenth,if necessary.

Answers

9.) QP=5-1
QP=4units
QR=3+1
QR=4units

squareroot 4^(2)+4^(2)

and you should get 5.66 (cor. to 3 s.f.)

10.) LM=5units
MN=7units

squareroot 7^(2)+5^(2)
you should get 8.06 (cor. to 3 s.f.)

The owner of a dress shop ordered 33 dresses from a new designer. The designer's dresses now make up to 30% of all dresses in the shop. How many dreses are in the shop in all?

Answers

30 33
-----= ----
100 ?
To find this we need to find what makes 30 into 33. 33 divided by 30=1.1
To find ? we need to reverse since it's on the other side. 100 x 1.1=110
110 dresses in total.

A) Estimate 49% of 162.
b) Use mental math to calculate 49% of 162.

Answers

To find this answer you will need to turn that percentage into a decimal. 49%=.49
Then, you will need to multiply 49x162
The answer should come up to be 79.38
Estimated is 79.00
Hope this helps:)

a. To find this answer you will need to turn that percentage into a decimal. 49%=.49

Then, you will need to multiply 49x162

Estimated is 79.00

b. 49% of 162 would be 79.38

Plz help i will mark brainiest

Answers

Answer:

its b

Step-by-step explanation:

Rearrange the Pythagorean Theorem to find the missing side. The Pythagorean Theorem is:

c2=a2+b2

where c is the hypotenuse and a and b are the sides.

√(26^2- 24^2) = 10

A gardener found the area of a lawn to be 10.0 square yards. What is the area of the wall in square meters?

Answers

8.36127 sq meters

well, One square meter is 0.836127 square meters, so you mutliply 0.836127 by 10 and you get 8.36127 sq meters

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