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
Greeley [361]
2 years ago
12

Mr. Martin’s math test, which is worth 100 points, has 29 problems. Each problem is worth either 5 points or 2 points. 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 How many problems of each point value are on the test?
Mathematics
2 answers:
klio [65]2 years ago
6 0
(x + y = 29)
(y = 29 - x)
(5x + 2(29 - x) = 100)
(5x + 58 - 2x = 100)
(3x = 42)
(x = 14)
(y = 15)
(14 5-point questions and 15 2-point questions)
zimovet [89]2 years ago
5 0

Answer:

b

Step-by-step explanation:

You might be interested in
Andrew deposits $300 into an account that earns 2% interest each year. After the first year, Andrew has $306 in the account. Aft
Sliva [168]

Answer:

It is a simple interest account

Step-by-step explanation:

As we might see from the given earnings, the amount of money he earned each year is the same as in the previous year. This means that the amount of money is growing linearly instead of exponentialy. This is characteristic to a simple interest account, which is found by using the formula:

I=Prt

where I = interest earned.

P = principal

r = Interest rate

t = time in years,

if we use this formula to calculate the amount of money earned after t years, we can see it will be the same as the values reported:

I=$300(0.02/year)(1year)=$6

I=$300(0.02/year)(2years)=$12

I=$300(0.02/year)(3years)=$18

So this simple interest account.

8 0
2 years ago
Tiny's Tattoo Parlor sold 389 tattoos this month. 43 of those tattoos were arm tattoos. Based on this data, what is a reasonable
antiseptic1488 [7]
Answer
(389-43)/389=346/389
8 0
2 years ago
Read 2 more answers
A taxi travels 2 hours to make a 220 km trip. How fast does it travel?<br>​
sertanlavr [38]
He would be driving approximately 110 km an hour
7 0
1 year ago
Read 2 more answers
tom was using wire of the following thicknesses .33mm , .275mm, .25mm, .3mm for some electrical work. order the wire from thicke
Lena [83]
Thickest to thinnest....
0.33m , 0.3mm, 0.275mm, 0.25mm
5 0
2 years ago
Asher pays 156 every 6 weeks for piano lessons. What is the price per year for piano lessons?
Marta_Voda [28]
About 1352
There r about 52 weeks in a year
Divide 52 by 6 = 8.66666667
Multiply 8.6666667 by 156 you will get 1352 per year
6 0
2 years ago
Read 2 more answers
Other questions:
  • Simplify (2x – 2y)(2y + 8) = ?
    15·1 answer
  • The diagonals of a parallelogram QRST, TR And QS, Intersect at point U, if RS = 10 , ST=12,And RU=9.5 , Find The Perimeter Of Th
    8·2 answers
  • What is the unit price if 4 pounds of fruit cost $6.48
    9·2 answers
  • Take a look at teen 1's initial polynomials for three layers of hills. Teen 1 has described what he thinks each modification to
    9·1 answer
  • What is the measure of RVE?<br> А. 45°<br> В. 60°<br> ) С. 750<br> OD. 309
    15·1 answer
  • The amount and the concentration of a salt solution is given. How much salt would you get if you evaporated all water from this
    10·1 answer
  • If an arrow is shot upward on Mars with a speed of 68 m/s, its height in meters t seconds later is given by
    13·1 answer
  • Sadie simplified the expression StartRoot 54 a Superscript 7 b cubed EndRoot, where a greater-than-or-equal-to 0, as shown colon
    13·2 answers
  • A square is formed by joining the midpoints of alternate sides of a regular octagon with side length 14 in. Find the shaded area
    12·1 answer
  • The equation for the line of best fit is f(x) ≈ 1.8x − 5.4 for the set of values in the table. A 2-column table with 7 rows. The
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!