what is the x cordinate of the solution​

What Is The X Cordinate Of The Solution

Answers

Answer 1

Answer:

x = - 4

Step-by-step explanation:

Given the 2 equations

y = - 2x - 5 → (1)

y = x + 7 → (2)

Substitute y = x + 7 into (1)

x + 7 = - 2x - 5 ( add 2x to both sides )

3x + 7 = - 5 ( subtract 7 from both sides )

3x = - 12 ( divide both sides by 3 )

x = - 4


Related Questions

Aluminum and tin are both metals. The standard atomic weight for aluminum is 26.98. The standard atomic weight for tin is 118.71.Estimate the difference between the standard atomic weights of these two metals

Answers

Answer:

92

Step-by-step explanation:

To estimate the difference between the standard atomic weights of these two metals we round up the given weights to the nearest whole number

The standard atomic weight for aluminum is 26.98.

To the nearest the whole number = 27

The standard atomic weight for tin is 118.71

To the nearest whole number = 119

Hence,

The estimated difference = 119 - 27

= 92

thats the question
at the picture

Answers

Answer:

tbh just dont do school we all live on a rock in space we make everything more of a deal then it needs to be :)

Step-by-step explanation:

Question 4
What is the y-intercept of the line?

Answers

Answer:

1

Step-by-step explanation:

the line crosses the y-axis at the point (0, 1), which is a y-intercept because x=0, so the y-intercept would be 1

Why does HIV attack T cells

Answers

Answer:

The reason HIV attacks T cells are because T cells produce antibodies that kill HIV.

Step-by-step explanation:

Your white blood cells help to fight off infection, The reason HIV attacks T cells are because T cells produce antibodies that kill HIV. Its like a battle between the two. HIV wants to stay there and T cells are trying to get rid of it so T cells are HIV main target.

50 POINTSSSS! Use trigonometric identities to verify that this expression is equal.
[tex]\frac{1-tan^{2} (x) }{sec^{2} (x) } =cos(2x)[/tex]

Answers

Answer:

R

H

S

=  cos

2

x

Step-by-step explanation:

need help, can someone help me real quick !

Answers

Answer: SAA or AAS

Step-by-step explanation:

You always start at the “void” or where there are the least amount of marks and go either way.

PLEASEEE HELPP MEEE!!​

Answers

Answer:

B, 0.07c

Step-by-step explanation:

to get the total sales tax, you need to multiply the price by the tax percent in decimal.

7%=0.07

c= the price

total price =0.07c

Which statements are true about function g?

Function g is increasing over the entire domain.
As x approaches negative infinity, approaches positive infinity.
Function g includes an exponential piece and a quadratic piece.
As x approaches positive infinity, approaches positive infinity.
Function g is continuous.

Answers

Answer:

B, D, and E.

B: As x approaches negative infinity, g(x) approaches positive infinity.

D: As x approaches positive infinity, g(x) approaches positive infinity.

E: Function g is continuous.

Step-by-step explanation:

To answer this question, we will graph it. Please refer to the graph below.

Let’s go through each of the answer choices.

A) Function g is increasing over the entire domain.

Looking at the graph, we can see that this is not true.

More specifically, the red curve is decreasing over its entire interval.

So, A is not correct.

B) As x approaches negative infinity, g(x) approaches positive infinity.

This is true. As x approaches negative infinity i.e. as we go towards the left of the graph, we can see that our function g(x) (the red curve) is approaching positive infinity.

C) Function g includes an exponential piece and a quadratic piece.

This is false. The first piece is indeed exponential, but the second piece is a cubic, not a quadratic.

D) As x approaches positive infinity, g(x) approaches positive infinity.

Again, this is true. As x approaches positive infinity i.e. As we go towards the right of the graph, we can see that our function g(x) (the blue curve this time) is approaching positive infinity.

E) The function is continuous.

For a function to be continuous, it must have no breaks, jumps, and/or gaps.

We can see that our function does not possess any of the above.

So, g(x) is continuous.

Therefore, the correct statements are B, D, and E.

Answer:

b,d,e

Step-by-step explanation:

big brain time

Bob's gift shop sold a record number of cards for Mother's Day. One salesman sold 33 cards, which was 2% of the cards sold for Mother's Day. How many cards were sold for Mother's Day?

Answers

Answer:

redes sociales fff

ffkr

(20 PTS) WILL GIVE BRAINLIST

Answers

Answer:

19 :)

Step-by-step explanation:

Click on the photo and please help!!! This is algebra

Answers

Answer:

The answer is C. y = -4 - 1

please! simplify 10 divided by 7 divided by 8

Answers

Answer:

0.18

Step-by-step explanation:

Determine whether the graph represents a proportional or non-proportional relationship. Then select the correct equation in the form y=mx or y=mx+b to represent the relationship between the independent and dependent quantities.


This graph is an example of a blank area relationship. The equation that represents the relationship between the independent and dependent quantities is blank area.

Unproportional
Proportional
y=5x+20
y=60x
y=x+30

Help me fill in the blanks that say blanks

Answers

Answer:

Non-proportional

y = [tex]\frac{2}{15}x+20[/tex]

Step-by-step explanation:

If a line doesn't pass through the origin relationship represented by the line is non proportional.

In other words, any line having y-intercept is non-proportional.

From the graph attached,

Line has a y-intercept = 20

Therefore, relationship is non-proportional.

Slope of a line passing through two points [tex](x_1,y_1)[/tex] and [tex](x_2,y_2)[/tex],

m = [tex]\frac{y_2-y_1}{x_2-x_1}[/tex]

Since, the given line is passing through (0, 20) and (60, 28),

Slope of the line 'm' = [tex]\frac{28-20}{60-0}[/tex]

m = [tex]\frac{8}{60}[/tex]

   = [tex]\frac{2}{15}[/tex]

y-intercept 'b' = 20

Slope-intercept form of the equation is,

y = mx + b

So the equation will be,

y = [tex]\frac{2}{15}x+20[/tex]

pls help!!I dont know what to do

Answers

21 ft

Hope this helped

help me please idk how to do this

Answers

Answer: your answer would be B

- 5 over 9

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

the square root of 6 can't be turned into a fraction

Can somebody help me please??

Answers

Answer:

$0.81

Step-by-step explanation:

2.45/3

each were $0.81

Answer:

0.82

Step-by-step explanation:

2.45 divided by 3 is 0.8166666666 so it rounded would be 0.82

help me out if you love your mother!!!

Answers

Answer:

i hate my mother (she abused me) but i like to help i suppose, B seems resonable to me. i would recomend checking all possibilities before answering

Step-by-step explanation:

please help asap. will give brainliest

Answers

Answer:

3

Step-by-step explanation:

Answer:

2

Step-by-step explanation:

Angle-Side-Angle. The Angle-Side-Angle Postulate (ASA) states that if two angles and the included side of one triangle are congruent to two angles and the included side of another triangle, then the two triangles are congruent.

Which graph is and is not a function!?​

Answers

Answer:

The first one is a function. The other two are not functions.

Step-by-step explanation:

To find this, you use the vertical line test. If the vertical line touches multiple points on the graphed line, it is not a function. If the vertical line only touches the graphed line at one point, it is a function.

Good Luck! I hope this helps!

I POSTED LIKE 5 QUESTIONS WHY DOES NOBODY HELP ME

Answers

I can help but same sometimes maybe because nobody knows lol! But the answer to your problem is d the last graph!!

Answer:

The answer is D

Step-by-step explanation:

A table of values for a linear function shows a constant rate of change between the x and y values.

howhowhow?how??? how would you calculate

if 1. was 32, how would you got 32 from '40% of 80'

Answers

Ok sooooooooooo

Lets say your two fractions are

13/26 and 20/40

you can divide the bottom number by the top one and if you get the same answer for both then they are equivalent. For these you get 2 for both, which means they are equivalent.

another example would be if your fractions are

2/5 and 4/10

You can say well 2*2 equals 4 And 5*2 equals ten so these are equivalent fractions.

A dime and a quarter are placed on one side of a balance scale. A half-dollar is placed on the other side. Which side of the scale has the greater mass and how much greater is it? Explain. (Picture is table with information)

Answers

Answer:

It would have to be 25 dimes

Step-by-step explanation:

Answer:

half dollar

Step-by-step explanation:

you cant have a dollar that is 50c you need it to be in 50c in metal circals so half dollar

the math team has 11 boys 10 girls and 1 coach. What is the ratio of coach to students?

Answers

1:21 I believe, sorry if wrong
11+10=21 students so 21:1

Pls help 40 points pls

Answers

i’m pretty sure it’s C

Pedro collects baseball and basketball cards. The ratio of the baseball cards to basketball cards In his collection is 3:2. If he has 40 cards,how many total cards does he have
A.)16
B.)27
C.)60
D.)100

Answers

Answer: The answer is 60. Easy question

F(x)=4^2+24x-3
Min or max of the y value

Answers

Answer:

y-intercept(s):  (0,13) max

Step-by-step explanation:

is –2x + 3 = 4y linear, if so write in standard form.

Answers

Answer:

Yes, it is linear. y=-1/2x+3/4

Step-by-step explanation:

To put it in standard form, you need to get the y by itself.

4y=-2x+3

Divide by 4.

y=-1/2x+3/4

First she need to find her resting heart rate by counting her pulse for one minute immediately after she wakes up for 5 days in a row. she finds her average resting heart rate to be 62 after 5 days and she remembers the last day pulse was 58 and all the others were the same ​

Answers

Answer: 63 She finds her average resting heart rate to be 62 after  5 days. That means, average of the 5 heart rate pulse=62 If the last day was 58 and all the other days were the same.

Step-by-step explanation


28.What is the slope of the line 2x + 5y = 15?
A. 2
B. -2
C.2/5
D.- 2/5

Answers

Answer:

it's -2/5 !

Step-by-step explanation:

i need help i don’t understand this

Answers

Answer:

4x_25+x+14+6x_51=180

solve in this type your answer will come

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