answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Maurinko [17]
2 years ago
16

mr. Martin is giving a math test next period. The test, which is worth 100 points, has 29 problems. Each problem is worth either

5 points or 2 points. Write a system of equations that can be used to find how many problems of each point value are on the test. Let x be the number of questions worth 5 points and let y be the number of questions worth 2 points. x + y = 29, 5x + 2y = 100 x + y = 100, 5x + 2y = 29 5x + y = 29, 2y + x = 100 2x + y = 100, 5y + x = 29
Mathematics
2 answers:
MakcuM [25]2 years ago
8 0

its the first answer x + y = 29, 5x + 2y = 100

bija089 [108]2 years ago
6 0

Answer:

x + y = 29, 5x + 2y = 100

Step-by-step explanation:

u lied about 100 points

You might be interested in
Janice and her dad are building a treehouse. Her dad bought a box of 155 nails for $3.10 and a box of 85 screws for $7.65. How m
Degger [83]
3.10/155= 0.02 } subtract = 0.07 more
7.65/85= 0.09 }
7 0
2 years ago
Read 2 more answers
A consumer is considering two different purchasing options for the car of their choice. The first option, which is leasing, is d
AVprozaik [17]

Answer:

  • y=250x+4000
  • y=400x+400

Step-by-step explanation:

Given that:

  • x represents the number of months of ownership; and
  • y represents the total paid for the car after ‘x' months.

<u>First Option (Leasing)</u>

250x - y + 4000 = 0

Expressing the equation in the Slope-Intercept Form y=mx+b, we have:

y=250x+4000

<u>Second Option (Financing)</u>

$400 for 0 months of ownership, (0,400), and $4400 for 10 months of ownership, (10, 4400).

First, we determine the slope of the line joining (0,400) and (10,4400)

Slope, m= \dfrac{4400-400}{10-0}= \dfrac{4000}{10}=400

We have:

y=400x+b

When y=400, x=0

400=400(0)+b

b=400

Therefore, the Slope-Intercept Form of the second option is:

y=400x+400

<u>Significance</u>

  • In the first option, there is a down payment of $4000 and a monthly payment of $250.
  • In the second option, there is a down payment of $400 and a monthly payment of $400.

<u>Part B</u>

We notice from the graph that after 24 months, the cost for leasing and financing becomes the same ($10,000). Therefore, a consumer will be better off financing since the downpayment for leasing is higher.

<u>i.e </u>

  • When x=0, y=$4000 for leasing
  • When x=0, y=$400 for financing

4 0
2 years ago
Find the measure of angle x in the figure below:
Gekata [30.6K]
45+55=100 180-100=80 that makes y = 80, and vertical angles makes x=80
5 0
2 years ago
Read 2 more answers
A 3.00-g copper penny at 25.0°C drops from a height of50.0 m to the ground. (
Gnoma [55]
The potential energy, E, of the penny is given by E=mgh.  The energy, Q, required to raise the temperature of an object by an amount ΔT is given by Q=mcΔT.  We can equate these two to get the result but we must use proper units and include the 60%:
(0.6)mgh=mcΔT
We see we can divide out the mass from each side
0.6gh=cΔT,   then 0.6gh/c=ΔT
(0.6)9.81(m/s²)50m/385(J/kg°C) = 0.7644°C
since this is the change in temperature and it started at 25°C we get
T=25.7644°C
As you can see the result does not depend on mass.  The more massive the copper object the more potential energy it will have to contribute to the heat energy, but the more stuff there will be to heat up, and the effect is that the mass cancels.
6 0
2 years ago
A has the coordinates (–4, 3) and B has the coordinates (4, 4). If DO,1/2(x, y) is a dilation of △ABC, what is true about the im
loris [4]

Answer:

Coordinates of Vertices of triangle ABC are A (-4,3) , B(4,4) and C(1,1).

As, DO is Dilation of Δ ABC by Scale factor of \frac{1}{2}.

Vertices of A' B'C' are

A'=(\frac{-4}{2},\frac{3}{2})=(-2,\frac{3}{2}), B'=(\frac{4}{2},\frac{4}{2})=(2,2), C'=(\frac{1}{2},\frac{1}{2})

So, Image Δ A'B'C' will be smaller than the Pre image Δ ABC.

The two triangles will be congruent.

AO is Dilated by a factor of half , so A'O' will be half of AO.

So, correct Statements are

1. AB is parallel to A'B'.

2.DO,1/2(x, y) =  

The distance from A' to the origin is half the distance from A to the origin.

OA=\sqrt{(-4)^2+3^2}=\sqrt{25}=5\\\\ O'A'=\sqrt{2^2+(\frac{3}{2})^2}=\frac{5}{2}=2.5

8 0
2 years ago
Read 2 more answers
Other questions:
  • Anna wants to take fitness classes. She compares two gyms to determine which would be the best deal for her. Fit Fast charges a
    6·2 answers
  • The number of concert tickets sold doubles every hour. After 12 hours, all of the tickets are sold. After how many hours are abo
    8·1 answer
  • On Friday, a bowling alley made $842.72 from lane rentals and $412.38 from the concession stand. On Saturday, their lane rentals
    12·2 answers
  • A literary magazine editor must choose 4 short stories for this month's issue from 17 submissions. in how many ways can the edit
    7·1 answer
  • If the ratio of the sides of two squares is 3:1, what is the ratio of their perimeters?
    9·1 answer
  • Tessa had $90 in her checking account. She paid her cable/internet bill for $60. She deposited $50 from her part-time job before
    13·2 answers
  • Find the probability of each event. A gambler places a bet on a horse race. To win, he must pick the top three finishers in any
    5·1 answer
  • What is 80, 023 written in scientific notation?
    13·1 answer
  • Alexia spent 3 minutes working on each of her math problems and 4 minutes on each of her science problems. Her homework took her
    10·2 answers
  • The scatter plot shows a scuba diver's depth in the ocean. The equation of the trend link shown is y = -3.29x - 10. Predict what
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!