1answer.
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
dimaraw [331]
4 years ago
8

Hannah got a perfect score on 3 more spelling quizzes this quarter than last quarter . If she doubles the number of perfect quiz

zes she had this quarter , she will tie the school record. The record is 3 times the number of spelling quizzes hannah scores perfectly on last quarter.

Mathematics
1 answer:
algol134 years ago
7 0
First, underline the key numbers

n=Perfect Quizzes last quarter

x=School record

n+3

3•2=x

Now we solve that

3•2=6

Now we know, x=6

If the record (6) is 3 times the number of spelling quizzes Hannah scored perfectly last quarter (n), then we know we have to divide the record (6) by 3 to know how many perfect quizzes were from last quarter.

6/3=2 so, n=2

The number of perfectly scored quizzes from last quarter is 2.

You might be interested in
The equation of the function h is h... PLEASE HELP MATH
Oduvanchick [21]

Answer:

Part A) h(4) -m(16)=-4

Part B) The distance between the y-intercepts is equal to 4 units

Part C) The value of h(x) will always be greater than the value of m(x) for any value of x

Step-by-step explanation:

Part A) What is the value of h(4) -m(16)

we have

h(x)=\frac{1}{2}(x-2)^2

For x=4

h(4)=\frac{1}{2}(4-2)^2=2

Find the equation of the line m(x)

Find the slope

take the points

(8,2) and (12,4)

The formula to calculate the slope between two points is equal to

m=\frac{y2-y1}{x2-x1}

substitute

m=\frac{4-2}{12-8}

m=\frac{2}{4}

m=\frac{1}{2}

Find the equation of the line in slope intercept form

y=mx+b

we have

m=\frac{1}{2}

point\ (8,2)

substitute

2=\frac{1}{2}(8)+b

solve for b

b=-2

y=\frac{1}{2}x-2

therefore

m(x)=\frac{1}{2}x-2

Find m(16)

m(16)=\frac{1}{2}(16)-2=6

so

h(4) -m(16)=2-6=-4

Part B) we know that

The y-intercept is the value of y when the value of x is equal to zero

Find the y-intercept of h(x)

For x=0

h(0)=\frac{1}{2}(0-2)^2=2

Find the y-intercept of m(x)

For x=0

m(0)=\frac{1}{2}(0)-2=-2

therefore

The distance between the y-intercepts is equal to 2-(-2)=4 units

Part C)

Graph both equations

h(x)=\frac{1}{2}(x-2)^2

m(x)=\frac{1}{2}x-2

using a graphing tool

see the attached figure

The value of h(x) will always be greater than the value of m(x) for any value of x

4 0
3 years ago
PLEASE HELP ASAP<br> Find the surface area and volume of the cylinder below:
Crazy boy [7]

Answer:

Surface Area: 848.23

Volume: 1727.88

Step-by-step explanation:

I know dis im in 8th grade iz ez!

4 0
3 years ago
A bowling ball is pushed with a force of 22.0 N and accelerates at 5.5 m/s2. What is the mass of the bowling ball? Ik the answer
KiRa [710]

Step-by-step explanation:

You should always use the least number of significant figures.  The exception is exact numbers or constants.

For example, there are 60 minutes in an hour.  Even though this number has one significant figure, it is an exact number.  So 15 minutes converted to hours would be 0.25 hr.

5 0
3 years ago
An isosceles right triangle has a hypotenuse of 16mm what would the area of the triangle be
olga2289 [7]

Answer: 64 square mm

Step-by-step explanation:

6 0
2 years ago
There are 18 girls in mr. Brimley’s math class. If 60% of the students are girls, how many students are in mr. brimley’s math cl
m_a_m_a [10]

Answer:

30

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Other questions:
  • What is the quotient of 2 divided by 1/2?
    14·2 answers
  • Pilar Perez is a truck driver. She earns 17.65 per hour. She worked 40 hours last week what is her straight time pay
    15·1 answer
  • A 12 ft rope cut into two pieces so that one piece is 3 ft less than twice the length if the other piece. How long is each piece
    15·1 answer
  • ASAP PLEASE ANSWER quadrilateral ABCD is dilated at center (0,0) with scale factor 1/2 to form quadrilateral A'B'C'D'. wha is th
    15·2 answers
  • 12. The blood platelet counts of a group of women have a bell-shaped distribution with a mean of 253.4 and a standard
    14·1 answer
  • Find the square root of 25? a. 125 b. 5 c.10 d.0.05
    14·1 answer
  • Has parallel sides but not a trapezoid
    15·2 answers
  • Name:
    15·2 answers
  • Which expression is equivalent to -30 - (8)
    6·1 answer
  • K(x)= -x^2 inverse function SHOW WORK PLEASE HELP FAST
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!