Mathematics High School

if cassey adds the following two equations, what multiple of the first equation will the sum represent?

x+y=5
2x+2y=10
A:2 B:3 C:4 D:5

Answers

Answer 1

Answer: 5

Step-by-step explanation:

Related Questions

Nachelle is 1.45 meters tall. At 11 a.m., she measures the length of a tree's shadow to be 23.05 meters. She stands 18.9 meters away from the tree, so that the tip of her shadow meets the tip of the tree's shadow. Find the height of the tree to the nearest hundredth of a meter.

Answers

Step-by-step explanation:

this creates 2 similar triangles.

that means all angles are the same. and all the side lengths of one triangle correlate to the corresponding side lengths of the other triangle by the same multiplication factor.

her shadow is 23.05 - 18.9 = 4.15 m long.

the factor between the shadow lengths is then

4.15 × f = 23.05

f = 23.05 / 4.15 = 5.554216867...

the same factor now applies to the relation of the heights :

1.45 × 5.554216867... = 8.053614458... m

rounded the tree is 8.05 m tall.


HELP BTW I NEED THE BOTTOM PART DONE NOTHING RLSE !

Answers

Answer:

0=0 one solution minus three equal to zero no solution

Find the 60th term of the following sequence.

4, 8, 12,

Answers

Answer:

240

Step-by-step explanation:

the answer is 240, just multiply the difference between the numbers in the sequence by the number of the term you want to find

PLEASE HELP ME I BEG IMMA FAILLLLLLLLLLLLLLLL


Identify the missing angle measure in a right triangle where one angle measures 12°.
168°
78°
Cannot be determined
88°

Answers

Answer:

78

Step-by-step explanation:

180-90-12=78

90 + 12 + missing angle = 180

102 + missing angle = 180

Missing angle = 180 - 102

Missing angle = 78

Hope this helps!
Brainliest is much appreciated!

If January 20 falls on a Tuesday, then February 15 of that same year falls on which day of the week? (January has 31 days)

Answers

Answer: Sunday

Step-by-step explanation:

The 27th would be tuesday

The 3rd would be tuesday

The 10th would be tuesday

The 15th would be sunday

Rewrite the expression as only multiplication and evaluate.
2
1 -

Answers

Answer:

72

Step-by-step explanation:

1 * 3/2 * (-8) * 3 * (-2)

3/2 * (-8) * 3 * (-2)

(-24/2) * 3 * (-2)

(-12) * 3 * (-2)

24 * 3

72

Solve the equation 3x + 2 = x + 4(x +2)

Answers

Answer:

x = -3

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Algebra I

Equality Properties

Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtraction Property of Equality

Distributive Property

Terms/Coefficients

Step-by-step explanation:

Step 1: Define

Identify.

3x + 2 = x + 4(x + 2)

Step 2: Solve for x

[Subtraction Property of Equality] Subtract x on both sides:                        2x + 2 = 4(x + 2)[Distributive Property] Distribute 4:                                                               2x + 2 = 4x + 8[Subtraction Property of Equality] Subtract 4x on both sides:                      -2x + 2 = 8[Subtraction Property of Equality] Subtract 2 on both sides:                        -2x = 6[Division Property of Equality] Divide -2 on both sides:                                x = -3

Answer:

x=-3

Step-by-step explanation:

3x+2=x+4(x+2)

3x+2=x+4x+8

3x=5x+6

3x-6=5x

-6=2x

x=-3

You and your friend mix water and citric acid. You add 3 cups of citric acid for every 16 cups of water. Your friend adds 2 cups of citric acid for every 12 cups of water. Whose mixture is more acidic?

Put responses in the correct input to answer the question. Select a response, navigate to the desired input and insert the response. Responses can be selected and inserted using the space bar, enter key, left mouse button or touchpad. Responses can also be moved by dragging with a mouse.

Answers

Answer:

You:If it’s was 6 cups of citric I’d be to 32 water

Your friend: if it was 4 cups it’d be 12 water

Step-by-step explanation:

I believe your friends is more acidic because your Is being diluted more

0.326
In word form and stranded form please help!!?! I am taking things that are from 4th grade ahh I can't even remember anything from then. please help me word form and stranded form.

Answers

Answer:

three hundred twenty six thousandths

Zero point three two six. Please give brainliest

Basically find the circumcenter.
the map shows the three most highly populated location of a city, City officials want to build an emergency healthcare cent in a location that sis the same distance from each of the three locations. Find the coordinates of the location the city should use for the emergency healthcare center.

Coordinates:

A(2,14) B(12,14) C(5,0)

Answers

Answer:

(7 , 7.75)

Step-by-step explanation:

A bag of mixed nuts contains almonds and hazelnuts. There are
(6x + 13) nuts in this particular bag, and (3x - 7) of these are hazelnuts

Which expression represents the number of almonds in the bag?

Answers

Answer:

3x+20

Step-by-step explanation:

total nuts: 6x+13

hazelnuts: 3x-7

almonds expression:

6x+13-(3x-7)

=6x+13-3x+7

=3x+20

What is the domain of the function
y = √x

Answers

Answer:

[tex]0\leq x<\infty[/tex]

Step-by-step explanation:

The function [tex]y=\sqrt{x}[/tex] is not defined for negative numbers in the domain as they produce non-real results. Therefore, all positive numbers including 0 are included in the domain, so the domain of the function would be [tex]0\leq x<\infty[/tex].

I've attached a diagram to help you visualize the domain.

It costs $6 to enter the fair. Each ride costs $1.25. You have spent $23.50. How many rides did you ride?

Answers

Answer:

14 rides

Step-by-step explanation:

23.50-6= 17.5

17.5/1.25=14

14 rides

23.50-6 = 17.50

17.50/ 1.25= 14

jim writes 10/4words evry day how many words does he write in 10/3 days

Answers

Answer:

10/4 per day (2.5 words simplified)

10/3 days he wrote so far (around 3 days simplified)

so in order to find out how much he wrote in total multiply the two numbers together

2.5 x 3 = around 7.5 or 8 words

In ∆, AB = AC and ∠A = 1000
, then ∠B is
a) 200
b) 400
c) 800
d) 600

Answers

Answer:

D is the answer

brainlilest me

x² + 3x + k = 0
pls help​

Answers

Answer:

[tex]\left(h,\:k\right)=\left(-\frac{3}{2},\:\frac{9}{4}\right),\:p=-\frac{1}{4}[/tex]

Step-by-step explanation:

[tex]x^2+3x+y=0[/tex]

[tex]4\left\bigg(-\frac{1}{4}\right)\left\bigg(y-\frac{9}{4}\right)=\left\bigg(x-\left\bigg(-\frac{3}{2}\right)\right)^2[/tex]

[tex]\bold{\mathrm{Therefore\:parabola\:properties\:are:}}[/tex]

[tex]\left(h,\:k\right)=\left(-\frac{3}{2},\:\frac{9}{4}\right),\:p=-\frac{1}{4}[/tex]

HELP PLEASE FOR BRAINLIST!!!!!!!!!!!!

Answers

Answer:

a(x) and d(x)

hope that helps, have a good day!

dont forget my brainliest.

Step-by-step explanation:

What is the measure of ZB?

Answers

Answer: 

Answer:[tex] m\angle A = 72\degree \m\angle B = 108\degree [/tex] Step-by-step explanation:ABCD is a parallelogram. Since, op

Find the component form of a vector.

Answers

Answer:

b

Step-by-step explanation:

It is b have a good day

0.35x4
please help me

Answers

Answer:

0.35*4=1.40

Step-by-step explanation:

Think of doing 35*4 but dividing the result by 100, or 2 decimal places to the left:

35*4 = 35*2*2 = 70*2 = 140

140/100 = 1.40

So, 0.35*4=1.40

Answer:

1.4

Step-by-step explanation:

You can use a calculator or you can try it using this method:

4 * 0.05 = 0.2

4 * 0.3 = 1.2

1.2 + 0.2 = 1.4

3. What percent of 150 is 15? Known: Unknown: the Equation:​

Answers

Answer:

Look Below

Step-by-step explanation:

Now if you are looking what percent 15 is in 150, then it'll be 22.5%

Just Multiply 150 with 15 (add a 0. before adding the 15) then multiply 150 x 0.15, and you get 22.5, to which that is 22.5%.

Will mark brainliest for this question

Answers

Answer:

a

Step-by-step explanation:

It's the positive answer

HELPPP I NEED HELP

plzzz

Answers

1) 23

That's all I know lol

write y= - 4x on a graph

Answers

If u put in a graphing calculator and look at the table you can plot the points given

what is 36×82×58+38?

Answers

171254 is the answer

Answer:

171,254

Step-by-step explanation:

calculate it

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

I will give brainliest!
Arwen created a copy of a certain line segment. What do you know is true about these two line segments?
1. The measure of the original line segment will be twice the measure of the copy.
2. The measure of the original line segment will be half the measure of the copy.
3. The endpoints will have the same letters.
4. They are congruent.

Answers

A copy of a line segment will have the same measure or length as the segment.

The true statement is (4) They are congruent.

From the question, we understand that a copy of the line segment is created.

This means that the new segment has the exact property as the original line segment.

Hence, both lines are congruent, and the true statement is (d)

Read more about line segments at:

https://brainly.com/question/3573606

A microscope shows an image of an object that is 40 times the object's actual size. So, the
scale factor of the enlargement is 40. An insect has a body length of 4 millimeters. What is the body length of the insect under the microscope?

160 centimeters

16 millimeters

1,600 millimeters

160 millimeters

Answers

I think it’s 160 centimeters I could be wrong tho

Answer:

don't take my answer its wrong doing it for points sorry

Step-by-step explanation:

Only like 5 or 6 more questions for the last question I’m doing 100 points

Answers

Answer:

700 foundations is the answer

Answer:

500 foundations

Step-by-step explanation:

Help

Activity:
2x²2+2x-312=0​

Answers

Answer:

Step-by-step explanation:

[tex]x3 = -8[/tex] i want the answer

Answers

Answer:

x=-8/3

Step-by-step explanation:

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