7(x+4)=-21 help find x plz

Answers

Answer 1

Answer:

x = -7

Step-by-step explanation:


Related Questions


Find the 89th term of the arithmetic sequence 25, 35, 45, ...

Answers

Answer:

905

Step-by-step explanation:

arithmetic sequence are in form

a(n)=a(0)+d(n-1)

a(0)=25

common difference: d=35-25=10

a(n)=25+10(n-1)

a(89)=25+10(88)=905

Enter numbers in figures to complete the passage below.
Give all values in pounds and pence, e.g. £3.50 not £3.5
SALE
Taal buys a jacket in the sale.
It has 15% off and he pays £42.50.
The original price of the jacket was £
He saved £

Answers

Answer:

£50 ; £7.50

Step-by-step explanation:

Given that:

Discount on sale, d = 15%

Amount paid = £42.50

Hence the relation to obtain the amount paid goes thus ;

Amount paid = (1 - d) * original amount

Let original amount = x

42.50 = (1 - 0.15)x

42.50 = 0.85x

x = 42.50 / 0.85

x = £50

Amount saved :

£(50 - 42.50) = £7.50

-1. A coffee shop spends $400 for an order of 20 cases of paper cups. How much is
one case of paper cups? Write and solve an equation.

Answers

Answer:

$20

Step-by-step explanation:

400/20=20

A colony of 500 bacteria doubles in size every 200 hours. What will the population be 400 hours from now?​

Answers

Answer:

1000

Step-by-step explanation

200+200=400

so

500+500=1000

The half-life of a radioactive kind of barium is 3 minutes. How much will be left after 6
minutes, if you start with 80 grams of it?

Answers

Answer:

20 Grams will be left after 6 minutes.

Step-by-step explanation:

А
B
Scarlett walks along the edges of a
rectangular path from A to B to C to D, a
distance of 38 metres. Jake walks along the
same rectangle, but from B to C to D to A,
a distance of only 31 metres.
What is the area, in square metres, of rectangle ABCD?
D
С

Answers

Answer:

168 meters squared

Step-by-step explanation:

So we know that Jake walked from b to c and d meaning he didn't go from a to b, but we also know that scarlet walked a to b so to find the length we can subtract scarlet's walk by jake's walk or 38-31 which is 7.

So we know the length of one side is 7 so this means we have side a to b and c to d, but we still need to know b to c. So what we can do is get the length of a b c and d and isolate it so that we only have b to c. To do this we get the length of 7 and double it which is 14 and take it away from the 38m

38-14=24

so now we know that the side is 24 and we can solve for the area

24*7=168

so the answer is 168 meters squared

please help me with this

Answers

There is no picture or information!

Solve for the unknowns.
a, b , c ,d

Answers

Answer:

can u plz make a good picture to solve I can't see good

Step-by-step explanation:

and thanks

PLEASE HELP! The AHS football team did a weigh-in at the start of training camp and the weights of the players were distributed normally. There were 60 players
at the start of camp. How many players are within one standard deviation of the mean?

Answers

This is very simple. All you have to do is multiply 60, the number of players, with 68% the proportion of players that are within one standard deviation from the mean.
Therefore:
60*0.68= 40.8
You should go with 40 players in this case to be conservative but if ur teacher says otherwise go with 41

Guys I need help plz! ( it would mean a lot if u help )

Answers

Answer:

━☆゚.*・。゚X>6

Step-by-step explanation:

Here,X is greater than 6

Answer:

x > 6

Hope this helped <3

Find the height of a flagpole to the nearest tenth if the angle of elevation of tbe sun is 28 degrees & the shadow of the flagpole is 50 feet

Answers

Answer:

Step-by-step explanation:

tan28=h/50

h=50tan28

h=26.6ft

Which fraction is equivalent to the whole number 8?

Answers

Answer:

16/2, 32/4, 64/8 ...

Step-by-step explanation:

There are multiple fractions that equal 8

According to the graph, what is the value of the constant in the equation
below?
25+
(3.25)
Height
Constant
Width
20 +
15
(5, 15)
Height
10
(15,5)
(25,3)
10
15
20
25
Width
O A. 5
B. 100
O c. 10
O D. 75

Answers

Answer:The Answer is C

Step-by-step explanation:

The value of the constant in the equation below is 100. So, the correct option is (C).

What is Height?

Height also known as elevation is defined as the vertical distance either between the top and bottom of something or between a base and something above it. It refers to something measured vertically high or low.

Height is body measurement usually measured in feet (feet) + inch (in) and centimeter (cm) where these are length measurements, so the SI unit will be meter.

Height equation: H= C/W

where, H is the height, C is the constant and W is the width.

We choose a point given in the graphic, I will choose (4,25), which means that when W=4  and H=25 . We use this to find the constant. So

25=C/3

C= 100

Thus, the value of the constant in the equation below is 100. So, the correct option is (C).

Learn more about Constant, here:

https://brainly.com/question/9994821

#SPJ5

8) If 15 balls cost Rs 225 then the cost of 8 balls is​

Answers

Answer:

The cost of 8 balls is Rs $ 120.

Step-by-step explanation:

Given that 15 balls cost Rs $ 225, to determine the cost of 8 balls it is necessary to perform the following mathematical calculation:

(225/15) x 8 = X

15 x 8 = X

120 = X

Thus, the cost of 8 balls is Rs $ 120.

1) f(x) = x 2+ 3x - 18 2) g(x) = x 2+ 2x - 120 3) h(x) = x 2+ 7x - 17 4) k(x) = x 2+ 9x + 20.25 5) s(x) = 4x 2– 5x - 21 6) t(x) = 16x 2+ 9x + 20 7) f(x) = -2x 2+ 10x - 5 8) r(x) = -3x 2- 5x + 2

Answers

1-9 eusnanednjwnxjnd is 10

The distance from Cherotich's home to school is
2km 400m. He goes to school in the morning
and returns in the evening daily. What distance
does he cover from Monday to Friday?

Answers

Step-by-step explanation:

his one day distance=2400m

his mon -fri distance=2400×4

=9600m

The figure shows two parallel lines cut by a transversal. Which angle pairs are alternate exterior angles? Choose all that apply. Please help PT.3
A. Angle A and Angle G
B. Angle B and Angle H
C. Angle B and Angle F
D. Angle B and Angle G
E. Angle H and Angle A
F. Angle E and Angle D

Answers

Answer:

D and E

Step-by-step explanation:

Answer: d and e!

Step-by-step explanation:

:)

Help please! What is 438 x 934? I'm timed (gc for the school peeps sending this to them)

Answers

Answer:

438 x 934=409092

Step-by-step explanation:

I hope this helps.

PLEASE HELPPPP

Find the equation of the line

Answers

Answer:

Y = 3/4x - 2

Step-by-step explanation:

Slope = 3/4

Y intercept = - 2

lin run 5 laps around a track in 10 minutes. How many minutes per lap is that​

Answers

Answer:

2min per lap

Step-by-step explanation:

The answer would be 2 minutes per lap

Which pairs are like terms in the expression below? Select all that apply.
25y + 15x – 0.2y – 6 + (–2)

A. 25y and 15x
B. 25y and –0.2y
C. 15x and –0.2y
D. –0.2y and 2
E. –6 and –2

Answers

Answer:

B.  and E.

Step-by-step explanation:

hope it helps ;)

Answer
B and e
Hope this helps

Find the volume of the beach ball and the volume of the toy ball. How many times greater is the volume of the beach ball than the volume of the toy ball?
A.THE VOLUME OF THE BALL IS 904 CUBIC INCHES. b. THE VOLUME OF THE BEACH BALL IS 678 CUBIC INCHES. c.the volume of the beach ball is 452 cubic inches

Answers

Answers:

Volume of beach ball = 904 cubic inchesVolume of toy ball = 113 cubic inchesThe beach ball is 8 times greater compared to the toy ball

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

Work Shown:

Beach ball

V = volume of sphere

V = (4/3)*pi*r^3

V = (4/3)*3.14*(6)^3 .... the beach ball has diameter 12, so radius is 6

V = 904.32

V = 904 cubic inches is the approximate volume of the beach ball

------------------------

Toy ball

V = volume of sphere

V = (4/3)*pi*r^3

V = (4/3)*3.14*(3)^3 .... the toy ball has diameter 6, so radius is 3

V = 113.04

V = 113 cubic inches is the approximate volume of the toy ball

--------------------------

Divide the two volumes to find that 904/113 = 8

This means that the beach ball is 8 times greater in volume compared to the toy ball

We can say

[tex]\text{Beach ball volume} = 8*\left(\text{toy ball volume}\right)[/tex]

The beach ball's volume is 7238.23and if we round that would be 7238 and the volume for the toy ball is 904.78 and if we round that it would be 905.So, it's around 7 times greater. The difference after they are rounded is  6,333.

Hope this helps.

Answer the following for the given figure.

Answers

Answer:
A. Angle 1 is congruent to angles 7,3, and 5
B. Angles supplementary to angle 3 are angles 4,6,2 and 8. Their measurements are 75. 180-105= 75

At the beginning of spring, Elijah planted a small sunflower in his backyard. When it was first planted, the sunflower was 25 inches tall. The sunflower then began to grow at a rate of 1 inch per week. How tall would the sunflower be after 7 weeks? How tall would the sunflower be after w weeks?

Answers

Answer:32

Step-by-step explanation:25+ 1(7)

Find the value of x. Write your answer in simplest form.

Answers

Answer:

The value of x is 8

Step-by-step explanation:

What is an equation of the line that passes through the point (3,-1)(3,−1) and is parallel to the line 5x+3y=65x+3y=6?

Answers

Answer:

6yx hope this helped dude!

Step-by-step explanation:

Answer:

6yx

Step-by-step explanation:

Ruby, Joey and sully are baking cookies together. they need 3/4 cup of flour and 1/3 cup of butter to make a dozen cookies. Ruby brought 2 cups of flour and 1/4 cup of butter, Joey brought 1 cup of flour and 1/2 cup of butter, sully brought 1 1/4 cups of flour and 3/4 cup of butter. if the students have plenty of other ingredients that they need. how many whole batches of a dozen cookies can they make.​

Answers

Answer:

4 dozens.

Step-by-step explanation:

Since Ruby, Joey and Sully are baking cookies together, and they need 3/4 cup of flour and 1/3 cup of butter to make a dozen cookies, since Ruby brought 2 cups of flour and 1/4 cup of butter, Joey brought 1 cup of flour and 1/2 cup of butter, sully brought 1 1/4 cups of flour and 3/4 cup of butter, if the students have plenty of other ingredients that they need, to determine how many whole batches of a dozen cookies can they make the following calculation must be performed:

Flour: 2 + 1 + 1 1/4 = (4 1/4) / (3/4) = 4.25 / 0.75 = 5.666

Butter: 1/4 + 1/2 + 3/4 = (1 1/2) / (1/3) = 1.5 / 0.333 = 4.504

Thus, a maximum of 4 dozen cookies can be made.

Help pls!!ty!!:))):):

Answers

Answer:

Step-by-step explanation:

y = 85x+90

3) 85*3+90 (rule)

y= 85*3 = 255 + 90 = 345  (output)

4) 85*4+90 (rule)

y = 85*4=  340 + 90 = 430 (output)

What was the shortest measurement?
Length of insects (in inches)

Answers

Answer:

[tex]1\frac{1}{2}[/tex] inches

Step-by-step explanation:

The shortest measurement is the smallest number with a x over it. In this case, the smallest one is [tex]1\frac{1}{2}[/tex] inches.

Eliana treated her sister to lunch while visiting her in Seaside. Their lunch cost $100, and the
sales tax in Seaside is 8%. If Eliana left a 20% tip on the $100, how much in total did she
pay?

Answers

Answer:

multiply the numbers

128

Step-by-step explanation:

Answer:

128 is the answer

Step-by-step explanation:

your welcome!

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