1. The sum of twice a number and 4 times another number is 4. The difference of the
numbers is 5. Find the numbers.

Answers

Answer 1

9514 1404 393

Answer:

  4, -1

Step-by-step explanation:

We can let x and y represent the two numbers. The first relation is ...

  2x + 4y = 4

The second relation is ...

  x - y = 5

Subtracting the second relation from half the first gives ...

  1/2(2x +4y) -(x -y) = 1/2(4) -(5)

  3y = -3

  y = -1

From the second relation, ...

  x = 5 +y = 5 -1 = 4

The two numbers are 4 and -1.


Related Questions

HELP! ILL GIVE BRANLIEST :(

Answers

Answer:

B

Step-by-step explanation:

since x is GREATER than -25, the shaded part has to be on the right of -25

Answer: B

Step-by-step explanation:

A group of students were asked how many sisters they have visited in their lifetime. Below is a lot plot of their responses. How many observants are in this data set?

Answers

The answer for this question is 34.

Select the correct answer.
if f(t) = 2 - 4 and 9 (7)
= 2 – xż and g(x) = x2 – 9, what is the domain of g(x) = f(x)?
OA. (-0, 2] and [2, 0)
OB. [0, 4) and (4, )
Oc. (-0, 2] and [4, 0)
D. (-0, -2] and [2, )

Answers

Answer:

Option B will be your answe

Step-by-step explanation:

hope it helps....

Point P is located on the segment between point A (1,4) and point D (7,13). The distance from A to P is twice the distance from
Pto D. What are the coordinates of point P?

Answers

Answer: Point P is at (3, 7)

Step-by-step explanation: the distance from point a to point B is 10.8. 10.8 divided by 3 is 3.6, so you have to find a point that 3.6 from point a. Using a graph, I found the answer to be (3,7)

In a litter of 7 kittens, each kitten weighs less than 3.5 ounces. Find all of the possible values of the combined weights of the kittens.

Answers

3.4 x 7 = 23.8 ounces

3.3 x 7 = 23.1 ounces

3.2 x 7 = 22.4 ounces

3.1 x 7 = 21.7 ounces

3 x 7 = 21 ounces

and so on, use a calculator and go until hit 0.1 btw all these answers r written in bold. :)

What is the value of x in triangle PQR below?
Q
389
489
R
[Not drawn to scale)
88
0940
1329
1420
Mark this and retum
Save and Exit
Next
Submit

Answers

Answer:

Hello! answer: x = 94

Step-by-step explanation:

Triangles add up to 180 degrees so we just add up the two measures we do have so 48 + 38 = 86

Now we subtract that from 180 to find x so

180 - 86 = 94 So 94 is x Hope that helps!

You would burn about 200 calories by walking for 1 hour. About how many calories would you burn if you walk for 15 minutes? PLS HELP ME!!!

Answers

Answer:

50

Step-by-step explanation:

So first just sort the times, and the number of calories:

200 calories -> 1hr

x -> 15 mins

So an hour is 4 times the amount of 15 mins, so all you need to do is divide 200 by 4. The answer is 50

Antonio watches a movie that is 1 hour and 45 minutes long. Which number line could show when Antonio watches the movie?

Answers

Answer:

1st one

Step-by-step explanation:

Answer:

Bottom left

Step-by-step explanation:

Those I-ready diagnostics suck don't they?

Factor the quadratic:
2x^2-7x+3

Answers

Answer: (2x-1) (x-3)

what is the area of a rectangle of 5/9 m in length and 7/8 m in width

Answers

Answer:

35/72 [tex]m^2[/tex]

Step-by-step explanation:

Rectangle Formula: [tex]l*w=Area[/tex]

Switch the variables with the numbers given:

[tex]\frac{5}{9} *\frac{7}{8} =Area[/tex]

Multiply the top and bottom:

5*7 = 35

9*8 = 72

35/72 = Area


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Answers

Answer:

what do you mean by why?

Step-by-step explanation:

why why why why why??

4 Which number line represents the solution to the inequality 4 + 2x <6

Answers

Answer:

h

Step-by-step explanation:

H

Jasmine spent 30$ on supplies to make 60 cupcakes for a bake sale.jasmine wants to have a profit of more than 90$.Write an inequality to find the price,p jasmine could charge for each cupcake.
(i need to find what inequality finds the answer)
ALL MY 100 POINTS FOR HELP PLEASE!!

Answers

Answer:

$1.50

Step-by-step explanation:

The square canvas of a painting has an area of 64 ft2. How many feet of border should be ordered to make a frame for the painting?

4 ft
8 ft
32 ft
128 ft

Answers

32 ft;
1. 64/2=8 per each side
2. 8+8+8+8= 32ft ( add 8 four times as a frame covers the perimeter of the canvas)

Find the graph to the equation below plz 20 POINTS

Answers

The graph to answer is D because y=4x

Answer:

the last one option 4

Step-by-step explanation:

during a nature walk jayden identified 20 animals and plants.1/4 of what he identified were animals.how many were animals?

Answers

the answer would be 5
Explanation: 1/4=.25 and .25x20= 5

Round to the nearest hundredth (2 decimal places) when necessary

Answers

Answer:

If it's area, then:

area = 148.2 yd²

Step-by-step explanation:

area = 19 x 7.8 = 148.2 yd²


The probability of the car having 4 doors is 1/2
What does that mean?

(A)It is neither unlikely nor likely
(B)It is likely
(C)It is impossible.
(D)It is definite.

Answers

Answer:

(A)It is neither unlikely nor likely

Step-by-step explanation:

answer is b

hope this helps

The width of a rectangle measures (4d – 8) centimeters, and its length measures
(7d – 3) centimeters. Which expression represents the perimeter, in centimeters, of
the rectangle?

Answers

Answer:

(22d-22) cm

Step-by-step explanation:

perimeter= 2×(4d-8+7d-3)

= 2× (11d-11)

(22d - 22) cm

Answer:

(22d-22)cm

Step-by-step explanation:

Perimeter = 2 x (width + Length)

= 2 x [(4d – 8) + (7d – 3)]

= 2 x (11d-11)

= (22d-22)cm

PEMDAS" notes and Integer rules
*
What is the value of this expression?
(6.3D Lesson 1)
-6. (-2 + 5)
A 42
B -18
с
18
D Not here

Answers

Answer:

B

Step-by-step explanation:

Answer:

-18

Step-by-step explanation:

First we start with brackets

(-2+5)= 3

Now

-6×3=-18

These marbles are placed in a bag and two
of them are randomly drawn.
What is the probability of drawing two
yellow marbles if the first one is placed back
in the bag before the second draw?
Give your answer as a ratio, reduced to
simplest terms.
[?]
Hint: Multiply the probability of the 1st Event by the
probability of the 2nd Event to get your answer.

Answers

2/10, i believe this is pretty self explanatory

Which description best summarizes the correlation between the calls made and the texts sent

Mm

Answers

Answer:

Weak positive

Step-by-step explanation:

From. Visual inspection of the scatter plot, the line of best fit will have a positive slope has values of x tends to increase with a corresponding increase in the value of y.

However, the points are scattered across the plotting area meaning that most of the points will be a bit farther away from the regression line. This means a weak correlation between the x and y variables will be obtained. Since the slope is positive, theb the relationship between the variables based on the scatterplot interpretation is a weak positive correlation.

please answers this questions PLEASE I NEED THE FAST please

Answers

Answer:

Not gonna do the whole thing for you for 5 points

Step-by-step explanation:

The formula for Circumference is C = 2πr or C = dπ

r (radius) is the length of halfway across the circle

d (diameter) is the length across the whole circle (also it's equal to 2r)

You can solve it with that info

Don't forget to round if you need to

Which statement best describes the association between variable X and variable Y?

Answers

Answer:

weak, negative association

Step-by-step explanation:

If variables have a strong association, the points will form a clear line/curve. Since the graph's points are scattered and fairly chaotic, we can say the association is weak.

Positive associations trend upwards and negative associations tend downwards. This graph seems to overall tend downwards, so we can say the association is negative.

does anyone know the answer for this?

Answers

Answer:

8 cm

Step-by-step explanation:

The area of the shaded portion is:

[tex]a = \pi \times (( {r1)}^{2} - {(r2}^{2})) [/tex]

A=39π cm^2

r1 is the radius of the large circle

r2=5 cm

So,

[tex]39\pi = \pi \times (( {r1)}^{2} - {5}^{2} ) \\ r1 = 8 \: cm[/tex]

Help me pls thanks so much

Answers

Answer:

B. (50.27)

Step-by-step explanation:  a = (pi)r^2

8/2 = 4

4^2 = 16

16(pi) = 50.27

You're welcome :)

Answer:

=50.285714

Step-by-step explanation:

Area of a circle is equal to πr^2

diameter = 8 so radius = 4

22/7x4x4

22/7x16

=352/7

=50.285714

PLEASEEEEEEEEEEEEEEEEEE HELP!!!!!!!!!

Answers

Answer:

12 Squared Units

Step-by-step explanation:

Top length: 4 Units

Side length: 3 Units

3
Select the correct answer.
Which value is needed to determine a confidence interval for a sample mean?
O A.
the sample proportion
O B.
the standard error of the mean
O C.
the margin of error for the proportion
OD
the population size
Reset
Next

Answers

Answer:

A

Step-by-step explanation:

I think I am not sure I just started to do this in school...

please tell me that *FIND THE SQAURE ROOT OF 1054729 BY DIVISION METHOD*.

Answers

Answer:*FIND THE SQAURE ROOT OF 1054729 BY DIVISION METHOD*.

Step-by-step explanation:

what? you said to tell you that

What is the sum of degrees of each vertex for a tree with 6 vertices?
a) 5
b) 6
c) 8
d) 10

Answers

Answer:

C: Is the Answer

Step-by-step explanation:

Really hope it'll help!!

I think the answer will be c
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