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
Kaylis [27]
4 years ago
5

From the beginning of the day the temperature rose 15° so that by 4 pm it was 87°. What was the temperature at the start of the

day?
Mathematics
1 answer:
dezoksy [38]4 years ago
3 0
The answer would be 72 degrees because it rose 15 from the begining

You might be interested in
How to do this?
Mandarinka [93]
This equation uses two properties of logarithms:

\ln(g^x) = x \ln(g)

\ln(a) + \ln(b) = \ln(ab)

So you could take the ln from left and right hand side in the equation, and get:

(2-x)ln 3 = x ln 5

then

2 ln 3 - x ln 3 - x ln 5 = 0 =>

x(ln 3 + ln 5) = 2 ln 3

so x = 2 ln 3 / (ln3 + ln5)

Now using the 1st property you can say 2 ln 3 is ln 3² = ln9
and using the 2nd property you can say ln3 + ln5 = ln15

so x= ln9 / ln15


7 0
3 years ago
Factor 1
Aneli [31]

Answer:

See explanation and attachment.

Step-by-step explanation:

One of the ways to represent polynomial is the use of algebraic tiles.

To represent the polynomial x²-5x-1, we would use algebraic tiles to represent each of the three terms.

Algebra tiles come with different colors and sizes. Each size is equivalent to a degree of different monomials.

The x² tile is a monomial with degree of 2, the x tile is a monomial with degree of 1 and the unit tile (constant) is a monomial with degree of 0.

Let the shaded tiles represent the positive tiles and the unshaded tile represent the negative tiles.

Find attached the diagram for the tiles.

To represent the polynomial x² - 5x - 1, we would need 1 shaded x² tile, 5 unshaded x tiles and 1 unshaded unit tile. Then we would arrange the tiles to correspond with the polynomial.

3 0
3 years ago
30 Points!!! Please Help (Surface Area)
Nostrana [21]
Multiply base x height then divide by 2 if finding surface are if finding volume multiple base x height x width and divide by 3
4 0
3 years ago
Camilla, Lincoln and Ella sat a French test. The test was marked out of 200 Camilla got 4/5 of the 200 marks. Lincoln got 44% of
Dafna1 [17]

Answer: Ella got the highest mark

Step-by-step explanation:

camilla got 160/200 because 200 divided by 5 = 40

lincoln got 88/200 because 44% of 200 is 88

ella   got 198/ 200

6 0
3 years ago
Simplify the expression 8(2x - 6y + 3) using the distributive property. *
yawa3891 [41]

Answer:

16x - 48y +24

Step-by-step explanation:

We can use the distributive property to expand:

  1. 8(2x - 6y + 3)
  2. 8 x 2x - 8 x 6y + 8 x 3
  3. 16x - 48y + 24

Hope this helps!!

7 0
3 years ago
Read 2 more answers
Other questions:
  • What is the percent of girls if there are 16 boys in a 28 student class?
    13·1 answer
  • Jose and Tia are selling candles for a fundraiser Tia has earned 15$ to Jose $20 what is her ratio of earnings to his?
    14·1 answer
  • City A: 3% City B: 4.1% City C: 2.9% City D: 3.2% Tom wants to buy a sweater for $30. In witch city will it be lest expensive?
    5·2 answers
  • Find the product<br> -5. 12 =
    7·1 answer
  • What is the independent variable for the graph?
    10·1 answer
  • I am giving 100 points to whoever solves this first, I really need help please help!!!
    11·2 answers
  • A recipe for a pitcher of lemonade calls for 7/8 cup of sugar, 3/4 cup of lemon juice, and 3 3/4 cups of water. How many total c
    7·1 answer
  • 18x + 3y = -21 !!!!!!!!!!
    15·2 answers
  • A snowmobile traveled 32 miles in 2 1/3 hours.
    9·1 answer
  • First, find the surface area of the triangular prism.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!