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
Alenkinab [10]
3 years ago
15

The temperature in the late afternoon was -7.5° it dropped 5° by early evening and then dropped another 85° by midnight what was

the temperature at midnight
Mathematics
1 answer:
dalvyx [7]3 years ago
6 0

Step-by-step explanation:

i think you missed a decimal place for 8.5°

when temperatures drop it means minus

so

-7.5-5-8.5= -21°

You might be interested in
What is the value of x in the equation 2x + 1/2x + 2(1+x) = 29?
erica [24]

Answer:

<h2>x = 6</h2>

Step-by-step explanation:

2x  +  \frac{1}{2} x + 2(1 + x) = 29

Multiply through by 2

That's

4x + x + 4(1 + x) = 58

<u>Expand</u>

That's

5x + 4 + 4x = 58

9x = 58 - 4

9x = 54

Divide both sides by 9

That's

\frac{9x}{9}  =  \frac{54}{9}

We have the final answer as

<h3>x = 6</h3>

Hope this helps you

5 0
2 years ago
Nora's math teacher said that each question answered correctly on a test would be
horsena [70]

Answer:

i can't see it :(

Step-by-step explanation:

5 0
2 years ago
The product of two consecutive numbers exceeds the square
Lyrx [107]

Answer:

20,21

Step-by-step explanation:

Let x be the first number.

Let y be the 2nd number.

Given y - x = 1 (since they are consecutive)

Rearrange it: y = x+1 (equation 1)

Also given:

xy-20=x^{2} (equation 2)

Now we can substitute y = x + 1 into equation 2.

x(x+1)-20 = x^{2} \\x^{2} +x-20 = x^{2} \\x-20=x^{2} -x^{2} \\x-20=0\\x=20

Since we know x, the smaller number is 20, we can substitute to equation 1 to find y, the larger number.

y = 20+1

= 21.

Therefore the 2 numbers are 20 and 21.

8 0
1 year ago
From least to greatest A=4.6*10^-4 B=2.4*10^-3 C=3.5*10^5 D=6.3*10^-4?
balandron [24]
A D B C The lowest power is the lowest number. If the powers are the same, the initial number dictates wether it is smaller or larger.
6 0
2 years ago
The expressions a(8<img src="https://tex.z-dn.net/?f=x" id="TexFormula1" title="x" alt="x" align="absmiddle" class="latex-formul
amid [387]

Answer:

The expressions a(8x+7) and 4x + 3.5 are equivalent

Therefore, according to the above problem the equation is :---

a(8x + 7) = (4x + 3.5) \\ 8ax + 7a = 4x + 3.5

By comparing the term, we get

8ax = 4x \\ 8a = 4 \\ a =  \frac{4}{8}  \\ \boxed{a = \frac{1}{2} }

and,

7a = 3.5 \\ a =  \frac{3.5}{7}  \\  \boxed{a =  \frac{1}{2} }

<h3>The value of "a" is <u>1/2</u>.</h3>
6 0
2 years ago
Read 2 more answers
Other questions:
  • A restaurant manager bought 20 packages of bagels. Some packages contained 6 bagels each, and the rest contained 12 bagels each.
    7·1 answer
  • Can someone please explain this question? I have a pic
    10·1 answer
  • Taylor Scuff leased a new sports car and is certain she can keep under the 12,000 miles allowed a year. The $2,200 due at signin
    10·1 answer
  • Ezra works two summer jobs to save for a laptop that costs at least $1100. He charges $15/hr to mow lawns and $10/hr to walk dog
    11·2 answers
  • Which graph represents the solution set of the system of inequalities?<br><br> x+y&lt;1, 2y≥x−4
    6·1 answer
  • Can I please get some help on this...I have tried to many times...
    11·1 answer
  • Fred has an account balance of $50. He needs at least $500 to buy a new computer. If he deposits $30 per day from his take home
    8·1 answer
  • Which measure describes how much a sample mean varies when different samples are chosen?
    7·2 answers
  • Samuel exercises everyday. She spends 40% of his exercise on the treadmill. If he uses the treadmill 40 minutes each day, how ma
    7·1 answer
  • Two people, A and B, travel from X to Y along different routes.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!