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
DIA [1.3K]
3 years ago
5

The low temperature last week in Iceland was-2.25. The low temperature this week was 1.25. What was the change in temperature fr

om last week to this week?
Mathematics
1 answer:
viktelen [127]3 years ago
6 0

Answer:

The change in temperature from last week to this week=3.5

Step-by-step explanation:

To get the change in temperature from last week to this week, we need to take last week's temperature and subtract it from this week's temperature.

For example;

Change in temperature=This week's temperature-last week's temperature

where;

This week's temperature=-2.25

last week's temperature=1.25

replacing;

Change in temperature=(1.25)-(-2.25)=1.25+2.25=3.5

The change in temperature from last week to this week=3.5

You might be interested in
Aline's y-intercept is -6 and its slope is 0.What is its equation in slope-intercept form?
notka56 [123]

Answer:

y=0x+-6

Step-by-step explanation:

y=mx+b

6 0
3 years ago
What is the product of (x+2) (x-4)
skelet666 [1.2K]
(x + 2)(x - 4)

= x^2 + 2x - 4x - 8
= x^2 - 2x - 8
3 0
3 years ago
you are taking a test worth 130 points. There are a total of 50 five-point and two-point questions. How many five-point question
REY [17]

Answer:

10 five-point questions and 40 two-point questions

Step-by-step explanation:

Let x represent the total number of five-point questions and y represent the total number of two-point questions.

Equation 1:     5x+2y=130

Equation 2:     x+y=50

Multiplying Equation 2 by 2:     2x+2y=100     (Equation 3)

(Equation 1) - (Equation 3):     3x=30

                                                  x=10

Substituting x=10 into x+y=50:     10+y=50

                                                            y=40

Therefore, there are 10 five-point questions and 40 two-point questions.


<h2><u>Check</u></h2>

Substituting x=10 and y=40 into Equation 1:

LHS=5x+2y=5(10)+2(40)=50+80=130

RHS=130

LHS=RHS

Substituting x=10 and y=40 into Equation 2:

LHS=x+y=10+40=50

RHS=50

LHS=RHS

Since in both cases the left-hand side is equal to the right-hand side, the answer is correct.

(LHS: left-hand side, RHS: right-hand side)

6 0
3 years ago
Which expression is equivalent?<br><br> - 5(2x -3y +4)
fiasKO [112]

Answer:

A

Step-by-step explanation:

8 0
3 years ago
Annie walks 15 feet away from her house and places a mirror on the ground. She backs 4 feet away from the mirror so that she can
Mars2501 [29]
Set up a proportion:

\frac{x}{5} = \frac{15}{4} \\  \\  x = 5(\frac{15}{4}) = \frac{75}{4}
6 0
3 years ago
Other questions:
  • Help!! on question 13, solve each equation for x.
    7·1 answer
  • 240 decreased 15%<br>Percent of change
    13·1 answer
  • Someone help me please
    15·1 answer
  • In a recent survey, three out of every five students said they would prefer going to a water park for the class trip.
    13·1 answer
  • Does (2, 1) make the equation y = 8x true? yes no​
    13·2 answers
  • SOMEONE HELP ME PLEASE EASY
    9·1 answer
  • What is the right answer???? Please do not answer if you don’t know. Do not waste my points. This is trigonometry.
    15·1 answer
  • What does the open circle and closed circle mean?? ​
    15·2 answers
  • Find the number of outcomes in the complement of the given event.
    15·1 answer
  • PLEASE HELP quick<br><br><br><br><br> ………
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!