please help ill give brainliest

Answer:

Answer:

A) 14

B)24

C)35

D)20

Step-by-step explanation:

A) Let the number be x.

Thus, 3x + 7 = 49

3x = 49 - 7

3x = 42

x = 42/3

x = 14

B) let lily's age be y.

Since Hillary's age is 19 years.

So,

19 = ⅔y + 3

⅔y = 19 - 3

⅔y = 16

Multiply both sides by 3 to give ;

2y = 48

y = 48/2

y = 24.

Lilly's age = 24 years

C) let the number be z.

Thus,

2z - 20 = 50

2z = 50 + 20

2z = 70

z = 70/2

z = 35

D) Let the cost of the handbag be p and the cost of the wallet be q.

Each handbag costs $10 more than each wallet.

Thus;

Cost of handbag = p + 10

Since she bought 2 handbags and a wallet and spent a total of $60 on the handbags.

Thus;

2(p + 10) = 60

2p + 20 = 60

2p = 60 - 20

2p = 40

p = 40/2

p = $20

Answer:

Her error in terms of inches was 2 inches while her percent error was 4.166%

Step-by-step explanation:

From the given data Claire estimated her brother to be shorter than he actually was. She estimated his height to be 4 feet while it was actually 4 feet 2 inches.

We convert the feet into inches because 12 inches are equal to a feet.

4 feet = 4 × 12 inches = 48 inches

4 feet 2 inches = (4 × 12 inches) + 2 inches = 48 + 2 = 50 inches

Error in terms of inches = 50 inches - 48 inches = 2 inches.

Step 2 ; Her percent error is given by dividing the difference in values by the actual value multiplied by 100.

% error = (difference in values / actual value) × 100

Claire's % error = (50 - 48)/ 48 × 100 = 2/48 × 100 = 0.04166 × 100 = 4.166%

Answer:

A 4% difference

Step-by-step explanation:

Convert 4 feet 2 into 4.16666666

4/4.16666666= 0.96 or 96%

4 feet was 96% of 4 feet 2 in

100 - 96= 4%

And this shows that there was a 4% error.

Hope it helped!

Answer:

I'll do #2 for ya.

a) 27

b) 9

c) 17.5

Step-by-step explanation:

a) 75% of 36 = 27

b) 36-27=9

c) 14*1.25=17.5

Answer:

Im am not exatly sure what you are confused on but Point a is on -1, -3.5 and point b is on 1,-3.5

Step-by-step explanation:

Answer:

A.

Step-by-step explanation:

Answer:

-53=w

Step-by-step explanation:

210=157-w

Subtract 157 from both sides

53=-w

-53=w

Answer:

4 liters of 30%  and 6 liters of 50% acid.

Step-by-step explanation:

Let the volume of 30% acid be x,  then the volume of 50% acid will be

(10 - x) liters.

So we have the equation:

0.30x  + 0.50(10 - x) = 0.42* 10

0.30x +  5 - 0.50x = 4.2

0.80 = 0.20x

x = 4  liters.

So we need 4 liters of 30% acid and 6 liters of 50% acid.

Answer:

(2.5, 0)

(0, 5)

Hope that helps

Answer:

graphing right?

Step-by-step explanation:

I used this website called desmos I really recommend it. hopefully, this was the correct answer and if so use the calculator for the rest to finish quick. good luck and have a great day!

Answer:

I think it’s 7%

Step-by-step explanation:

Answer:

i am just a little confused but so far its a yes

Step-by-step explanation:

Answer:

yes you are correct :)

Step-by-step explanation:

Good job :D

The equation of the line is required.

The proportional relation of the graph is [tex]y=\dfrac{1}{7}x[/tex]

Two points of the line are

[tex](0,0)[/tex] and [tex](21,3)[/tex]

[tex]x_1=0[/tex]

[tex]y_1=0[/tex]

[tex]x_2=21[/tex]

[tex]y_2=3[/tex]

The equation of the line is

[tex]y-y_1=\dfrac{y_2-y_1}{x_2-x_1}(x-x_1)[/tex]

[tex]\Rightarrow y-0=\dfrac{3-0}{21-0}(x-0)[/tex]

[tex]\Rightarrow y=\dfrac{1}{7}x[/tex]

Learn more about equation of line:

https://brainly.com/question/13763238

Answer:

1-24/(1+1)

Step-by-step explanation:

Answer:

i believe in you you can do it!

Step-by-step explanation:

Answer:

b 14 its 42 divided by 3 becouse 6 divided by 3 is 2

Step-by-step explanation:

Answer:

0.0625 or 1/16

Step-by-step explanation:

1/2 to the 4th power = 0.0625 or 1/16

Answer:

9

Step-by-step explanation:

2×4=8+1=9

if you got it correct....remember me nvm you already got it

Answer:

i believe the answer will be 23

Answer:

-56

-0.3

Step-by-step explanation:

Answer:

if they didnt give what x is you just do the numbers but since you cant take 78 from 7 i cant answer that one

Step-by-step explanation:

Anwser ???

Step-by-step explanation:

Answer:

sure

Step-by-step explanation:

Answer:

yassssssssssssuwujejfjktjkri

Answer:

TARGET

Step-by-step explanation:

walmart- 183.2

target= 179.4

best buy- 229

Target has the best deal. Hope this helps!

edit: i forgot bring down the 1 for walmart. therefore walmart total is $183.2. therfore TARGET has the better deal. sorry in advance

Answer:

First one is 35,338

Second one is 74,322

Step-by-step explanation:

Answer:

its ummmmm 0

Step-by-step explanation:

Answer:

a,c,a.b

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

The inequality to represents this situation is x + 2x ≥ 45.

A relationship between two expressions or values that are not equal to each other is called 'inequality'.

Given that, a band is selling candy bars for a fundraiser, Sierra sold some candy bars, Breanna sold twice as many candy bars as Sierra and together Sierra and Breanna sold no less than 45 candy bars

Let Sierra sold x bars, then, according to question,

x + 2x ≥ 45

Hence, the inequality to represents this situation is x + 2x ≥ 45.

For more references on inequality, click;

https://brainly.com/question/28823603

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