7(2а - 3) - 5a = -3

please show the work

Answers

Answer 1

Answer:

a = 2

Step-by-step explanation:

14a - 21 - 5a = -3

9a - 21 = -3

9a = -3 + 21

9a = 18

a = 2


Related Questions

At one time the aircraft is 150 m above the surface, the submarine is 25 m below the surface, and the underwater robotic vehicle is 186 m below the surface. What is the difference in height between the submarine and the aircraft

Answers

Answer:

[tex]175[/tex] meter is  difference in height between the submarine and the aircraft

Step-by-step explanation:

The height of aircraft above the surface [tex]= 150[/tex] meter

Depth at which the submarine lies below the surface [tex]= 25[/tex] meter

Depth at which the underwater robotic vehicle  below the surface [tex]= 186[/tex] meter

Difference in height between the submarine and aircraft is equal to

[tex]25 +150 = 175[/tex] meter

There are only green yellow blue cubes in a bag

Answers

Answer:

1 ÷ 11

Step-by-step explanation:

The computation is shown below:

let us assume the yellow cubes be x

So, blue cubes be 2x

And, green cubes be 2x (4) 8x

Now the ratio is

Yellow: Blue: green

x:2x:8x

1:2:8

Now the probability of yellow cubes is

= 1 ÷ (1 + 2 + 8)

= 1 ÷ 11

-4(y-2)=12
what is y

Answers

Answer:

y= -1

Step-by-step explanation:

Answer:

The answer would be y= -1

Step-by-step explanation:

When we have a number outside the parenthesis we do the rainbow method where we multiply the number on the outside of the parenthesis to the numbers inside the parenthesis so

-4*y= -4y and -4*-2=8

-4y+8=12

-4y=4

y=-1

Water flows through a pipe at a rate of 10 cubic meters per day. Express this rate of flow in milliliters per minute. Round your answer to the nearest whole number.

Answers

Answer:

6,944 ml/minute

Step-by-step explanation:

According to the scenario, calculation of given data are as follows,

Flow rate per day = 10 cubic meters

here, 1 cubic meter = 1,000,000 millilitre

so, 10 cubic meter = 10,000,000 millilitre

Minutes in a day = (60 × 24) minutes = 1,440 minutes

So, flow rate for 1,440 minutes = 10,000,000 milliliters

Flow rate for 1 minute = 10,000,000 milliliters ÷ 1,440 minutes

Flow rate per minute = 6,944.44 milliliters / minute or 6,944ml/minute

What is the solution set of this inequality? 3|p + 4| + 5 < 8 (–5, –3) (–3, 0) (0, –5) (3, 5)

Answers

Given:

The inequality is

[tex]3|p+4|+5<8[/tex]

To find:

The solution set for the given inequality.

Solution:

We have,

[tex]3|p+4|+5<8[/tex]

[tex]3|p+4|<8-5[/tex]

[tex]3|p+4|<3[/tex]

Divide both sides by 3.

[tex]|p+4|<1[/tex]

It can be written as

[tex]-1<p+4<1[/tex]

Subtracting 4 from each side, we get

[tex]-1-4<p+4-4<1-4[/tex]

[tex]-5<p<-3[/tex]

The solution set of the given inequality is (-5,-3).

Therefore, the correct option is A.

-10 x + 4 = 52 x=___ help

Answers

Answer: x=-4.8

Step-by-step explanation:

Given

-10x+4=52

Subtract 4 on both sides

-10x+4-4=52-4

-10x=48

Divide -10 on both sides

-10x/-10=48/-10

x=-4.8

Hope this helps!! :)

Please let me know if you have any questions

Answer:
x=-4.8
Explanation:
Given -10x+4=52
Subtract 4 on both sides -10x+4-4=52-4 -10x=48
Divide -10 on both sides -10x/-10=48/-10 X=-4.8


Select all the fractions that are equivalent to a whole number.

9/3

–16/3

7/0

–5/3

05​

Answers

Answer:

9/3

7/0

0/5

Step-by-step explanation:

9/3=6

7/0= 0

0/5=0

Calculate the area of metal sheet needed to make a cover as shown in the diagram below

Answers

Answer:

300m

Step-by-step explanation:

The lunch special at Manal's Restaurant is a sandwich, a drink and a dessert. There are 4 sandwiches, 2 drinks, and I dessert to choose from. How many lunch
specials are possible?
5 ?

Answers

Answer:

There is 8 possible combinations.

Step-by-step explanation:

4 sandwiches: turkey, ham, cheese, chicken

2 drinks: milk, water

1 desert: cake

possible combinations:

1: turkey, milk, cake

2:turkey, water, cake

3: ham, milk, cake

4: ham, water cake

5: cheese, milk, cake

6: cheese, water, cake

7: chicken, milk, cake

8: chicken, water, cake

- Charles used 1 cups of walnuts and
2 cups of cranberries to make
breakfast bread. How many cups of
walnuts and cranberries did he use
in all

Answers

Answer:

3 cups in all

Step-by-step explanation:

1+2+=3

Find the y-intercept:

Answers

-4 ,1 ,-8 ,1. In order

I ordered 4 new CD's by mail. Each CD costs the same amount and there was an additional $5 shipping charge that brought the total to $33. Write and solve the equation to find the cost of one CD.

Answers

Answer:

$7

Step-by-step explanation:

I ordered 4 new CD's by mail. Each CD costs the same amount and there was an additional $5 shipping charge that brought the total to $33. Write and solve the equation to find the cost of one CD.

Let us represent the cost of 1CD = x

Total cost = $5 + 4x

= 5 + 4x

Total cost = $33

Hence, our Equation is given as:

33 = 5 + 4x

4x = 33 - 5

4x = 28

x= 28/4

x = $7

The cost of 1 CD = $7

help asap i’ll be giving a brainliest to the person with the correct answer

Answers

Answer:

All of the above.

Step-by-step explanation:

By looking at the graph and taking point x at 4 and y at around 300. This shows us the precise rate of the graph which is when x = 4, y is equal to 300.

Now if we substitute the x as 4 in any of the equations we will get values larger than 300. Therefore, all the equations have a greater rate of change.

y = 85(4) = 340 (Greater)

y = 50(4) + 150 = 350 (Greater)

y = 65(4) + 100 = 360 (Greater)

Select all the equations that have that share a solution with the following
system of equations.
5 points
(5x + 4y = 24
2x – 7y = 26

Answers

Answer:

B.

Step-by-step explanation:

If you calculate the sum of both you get:

5x + 2x + 4y - 7y = 24 + 26

7x - 3y = 50, which is B

Bryce practice his piano for 1/3 hour each day. How many hours each week does Bryce been practicing piano?

Answers

Answer: 2¹/₃ hours per week

Step-by-step explanation:

Bryce practices his piano for 1/3 hours each day.

The number of days in a week is 7 days so to find out the number of hours he practices per week, multiply the number of hours practiced per day by 7.

= 1 /3 * 7

= 7 / 3

= 2¹/₃ hours per week

can someone please help me with question 6

Answers

Answer:

5323

Step-by-step explanation:

453

250 students attend a primary school. 94% of the students go on a visit to the zoo. How many students went to the zoo

Answers

Answer:

235

Step-by-step explanation:

94% of 250 is 235. To get 235, you can simply multiply 250 by .94

the length and breadth of a rectangular plot is in the ratio of 4:3. if the perimeter is 140m, find the length and breadth of a rectangle

Answers

Answer:

l = 40 m and b = 30 m

Step-by-step explanation:

Let the length and breadth of a rectangle be 4x and 3x.

We know that,

The perimeter of a rectangle is given by :

P = 2(l+b)

140 = 2(4x+3x)

70 = 7x

x = 10

Length, l = 4x = 4(10) = 40 m

Breadth, b = 3x= 3(10) = 30 m

So, the length and breadth of a rectangle are 40 m and 30 m respectively.

The sum of x and ten is twenty( write the equation

Answers

Answer:

2x10=20 X=2

Step-by-step explanation:

Please mark brainliest

Answer:

x+10=20

Step-by-step explanation:

I don't know if you want me to solve for x too, but if you do then x=10 :D

hope this helps :D

Please help a girl out I'm so confused

Answers

Answer:

A= 16 B=28

Step-by-step explanation:

So the ration is 4:7, you have to find multiples that have that same ratio

Multiply both numbers by 4, this should get you

16:28

16 + 28 = 44

Therefore this is the correct answer

Find the measure of the missing angles.

Answers

Step-by-step explanation:

c=144°(vertically opposite angle)

b+c=180°(straight angle)

b+144=180

b=180-144

b=36°

i need help 10 less than the sum of p and m

write the expression ​

Answers

Answer:

p + m - 10 is your expression

Step-by-step explanation:

Answer:

p + m - 10

Step-by-step explanation:

Hi , expressions are easy you just need to know how to read these weird word problems they give us.

Let us look at some key words and change them into symbols and not words.

10 less

This means it will most likely be a -10 somewhere

The sum of p and m

This would mean addition, so p + m

With this info we can form an expression.

p + m - 10

This is how I would write it.

Since the sum of p and m is (p+m) and the 10 less is the (-10)

You would add the p and m to find their sum and then take off 10 for the 10 less.

I hope this helps!

If you have any questions or concerns please comment or message me! :)

Plz help me with my math

Answers

Answer:

the answer is C (3,-4)

Step-by-step explanation:

read the X axis then y axis

HELP PLEASE IS IT A OR B

Answers

Answer:

its b as the variables have no values

Scarlett tried to shade all the factors of 15 on the hundred chart 15,45,75,30,60,90 What mistake did she make.

Answers

Answer:

she listed the multiples of 15, not the factors. The factors would be 1, 3, 5, 15.

Step-by-step explanation:

URGENT, PLEASE HELP!!
A commuter train is late to a station 5% of the time. Last week, the train was late on 2 of the 7 days. If the train being late can be considered a random event, what is the probability that the train would be late 2 times in 7 days?

A) 0.004
B) 0.014
C) 0.041
D) 0.050

Answers

Answer:

Step-by-step explanation:

d

Answer:

C

Step-by-step ex

Find the degree of 3y4+ 5y

Answers

Answer:

4

Step-by-step explanation:

(3y^4+5y)  =

(3⋅y^4+5⋅y)

=4

please help, i cant seem to get this right!!

Answers

Answer: 7ft

Step-by-step explanation:

The shape is a trapezium

Area of Trapezium= (1/2)(a+b)(h)

Area of Trapezium= 40sqft

a= x

b= 9ft

h= 5ft

40= (1/2)(x+9)(5)

40= (5(x+9)/2)

Cross multiply

80= 5(x+9)

80= 5x + 45

5x= 80-45

5x= 35

Divide both sides by 5

x= 7

,8. If A= {x:x is a factor of 72}
B= {x:72x+3<2x --3}.
C= {x:x<20} and A, B, Ccu.
Where 11 = {integers), list the
elemen:s of AnBnc.
(WAEC) pls help thx​

Answers

Answer:

No element is common to all the sets

AnBnc = { }

Step-by-step explanation:

If A= {x: xis a factor of 72}

A = {2, 3, 4, 6, 8, 9, 12, 18, 36, 72}

If B= {x: 72x+3<2x-3).

72x+3 <2x-3

72x - 2x < -3-3

70x < -6

x < -6/70

x < -3/35

x< -0.0857

If

C= {x:x<20}

C = {-∞, 19}

The intersection of the sets AnBnc = {} i.e an empty set

Note that intersection means all the elements common to the three sets

how to I find x and y.

Answers

Answer:the example equation becomes "x + 10 - 15x = 20," which is then "-14 x + 10 = 20." Subtract 10 from each side, divide by 14 and you have end up with x = -10/14, which simplifies to x = -5/7. Plug in the x value in to the first equation to find out the y value.

Step-by-step explanation:

Answer:

x=9

y=14

Step-by-step explanation:

Your picture shows that the two angles are congruent so:

2[(2x+27)]=90

4x+54=90

4x=36

x=9

Your picture shows the two horizontal lines as congruent also so:

4y-19=y+23

4y-19+19=y-y+23+19

3y=42

y=14

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