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
Nataly_w [17]
2 years ago
9

Sarah is saving to buy a new phone. She needs $150, and she has already saved $63. Write an equation to model this situation. Le

t
x represent the amount of money Sarah needs.
A)
X-63 = 150
B)
x+63 = 150
X + 150 = 63
D)
X - 150 = 63
Mathematics
2 answers:
IrinaVladis [17]2 years ago
7 0

Answer:

B.

Step-by-step explanation:

x+63=150

x+63-63=150-63

x=87

She needs 87 more dollars for her new phone.

julia-pushkina [17]2 years ago
4 0
The correct answer choice should be letter A as in Ana.
You might be interested in
Paul predicts that n stalks of corn planted together will produce (2n2–2n)(2n2–2n) ears of corn. If Paul plants three corn plant
Free_Kalibri [48]
Given that the production of n stalks of corn planted has been modeled by (2n^2-2n), then the approximate ears of corn produced by 3 stalks will be given by:
2n^2-2n
plugging in n=3 in the formula we get:
2(3)^2-2(3)
simplifying we get:
2(9)-6
=18-6
=12
the answer is: 12 ears
6 0
3 years ago
For what value of g does the function f(g) = g2 + 3g equal 18?
nikdorinn [45]

Answer:

B) 3

Step-by-step explanation:

f(3) = 3^2 + 3(3) = 9 + 9 = 18

3 0
2 years ago
A New York Times/CBS poll surveyed 1,027 adults nationwide about race relations in the United States. Of the sample, 61% respond
Naddik [55]

The interpretation is that we are 95% confident that the true population proportion p is somewhere between 0.58 and 0.64

The population proportion p in this case refers to the proportion of people who feel that race relations in this country are generally bad.

Something like 0.58 converts to 58% when you move the decimal point 2 spots to the right.

5 0
3 years ago
A water tank in the shape of an inverted circular cone has a base radius of 3 m and height of 7 m . If water is being pumped int
Wittaler [7]

The water level increases by 0.608 meters per minute when the water is 3.5 m deep

<h3>How to determine the rate?</h3>

The given parameters are:

  • Radius, r = 3
  • Height, h = 7
  • Rate in, V' = 4.3m^3/min

The relationship between the radius and height is:

r/h = 3/7

Make r the subject

r = 3h/7

The volume of a cone is;

V = \frac 13\pi r^2h

This gives

V = \frac 13\pi (\frac{3h}{7})^2h

Expand

V =  \frac{3h^3}{49}\pi

Differentiate

V' = \frac{9h^2}{49}\pi h'

Make h' the subject

h' = \frac{49}{9\pi h^2}V'

When the water level is 3.5.

We have:

h' = \frac{49}{9\pi * 3.5^2}V'

Also, we have:

V' = 4.3

So, the equation becomes

h' = \frac{49}{9\pi * 3.5^2} * 4.3

Evaluate the products

h' = \frac{210.7}{346.36}

Evaluate the quotient

h' = 0.608

Hence, the water level increases by 0.608 meters per minute

Read more about volumes at:

brainly.com/question/10373132

#SPJ1

7 0
2 years ago
Let T:R²-&gt;R² be a linear transformation ,and assume that T (1,2)=(-1,1) and T(1,-1)=(2,3)
zavuch27 [327]

Answer:

(-4,-1)

Step-by-step explanation:

We are given T(1,2)=(-1,1) and T(1,-1)=(2,3) and T is a linear transformation.

This implies for scalars a and b that

T(a(1,2)+b(-1,1))=aT(1,2)+bT(-1,1)

T((a,2a)+(-b,b))=a(-1,1)+b(2,3)

T((a-b,2a+b))=(-a,a)+(2b,3b)

T((a-b,2a+b))=(-a+2b,a+3b)

This means we should be able to solve the system below to find a and b for T(3,3):

a-b=3 and 2a+b=3

Add equations to eliminate b and solve for a:

3a=6

Divide 3 on both sides:

a=2

If a-b=3 and a=2, then b=-1.

Plug in a=2, b=-1:

T((a-b,2a+b))=(-a+2b,a+3b)

T((2--1,2×2+-1)=(-2+2×-1,2+3×-1)

T(3,3)=(-4,-1).

4 0
2 years ago
Other questions:
  • I don't get this I need help
    12·2 answers
  • tonya is twice kevin's age. in three years tonya will be 17. and in another three years, uncle rob will be three times tonyas ag
    10·2 answers
  • One of hundred equal parts
    13·2 answers
  • A pattern has 5 blue triangles to every 80 yellow triangles. What is the ratio of blue triangles to all triangles in simpligied
    11·2 answers
  • What is the difference from the point (-6,2) to the point (2,17)?
    6·1 answer
  • How many​ 1-ft square tiles would it take to cover the floor of a square room that is 26 ft on each​ side?
    14·1 answer
  • Yolanda drove 315 miles in 5 hours.
    9·1 answer
  • If a chair costs 734 dollars and I give it to my friend for 823 dollars how much is my profit as a percentage
    8·1 answer
  • Is 1/3 a rational number?<br> can rational numbers be negative
    5·1 answer
  • Sketch the region of integration and change the order of integration. $\int_{0}^{{\color{red}16}} \int_{0}^{\sqrt{x}} f(x, y)dy
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!