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
antoniya [11.8K]
3 years ago
11

What plus what equals 90?

Mathematics
2 answers:
ludmilkaskok [199]3 years ago
6 0
1+89, 2+88, 3+87......45+45.....!!
Nady [450]3 years ago
3 0
It would be: 1+89, 2+88, 3+87, 4+86, 5+85.... 44+46, 45+45

Hope this helps!
You might be interested in
A summer camp counselor wants to find a length x in feet across a lake as represented in the sketch to the left
Nata [24]

The question is incomplete and without a picture. I found similar question as follows:

A summer camp counselor wants to find a length, x, in feet, across a lake as represented in the sketch above. The lengths represented by AB, EB, BD and CD on the sketch were determined to be 1800 feet, 1400 feet, 700 feet, and 800 feet, respectively. Segments AC and DE intersect at B, and the angle AEB and the angle CBD have the same measure. What is the value of x?

Answer:

1600ft

Step-by-step explanation:

Angle AEB and CBD is the same value.

Referring to the picture, since ABC and DBE are straight lines and crosses each other at B, the angle DBC and EBA are equal.

Since we have 2 equal angle, the third angle must be the same as well.

Therefore we can conclude that both ABE and CBD are similar triangle but with different factor with;

AB similar to BC

EB similar to BD

AE similar to CD

To find the factor between ABE and CBD,

EB / BD = 1400 / 700 = 2

So x, which is AE must be a factor of 2 to CD

AE = 2*800 =1600ft

8 0
4 years ago
A fish tank has 8 goldfish 6 tetras 4 snails ans 2 platies what is the ratio of tetras to platies?.
iris [78.8K]

Answer:

The ratio of tetras to platies is 3:1 or 3/1

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
WILL MARK BRAINLIEST!!! NEED QUICKLY <br> Look at attachment
Nastasia [14]

Answer:

v = 25

Step-by-step explanation:

The crucial information you need to know to solve this is to realize that HI and GH are the same length. However, why they are equal is not immediately obvious.

Both sides of the middle line (HF) are symmetrical, since G and I are the same distance away from the line, and they both lie on a line perpendicular to the middle line.

Note: we know they're the same distance away due to the small red marks in the lines, indicating that they're the same length.

The angles at G and I in the triangles are also the same, as the lines from G and I both meet at H. If they were different angles, they would each hit a different point on the middle line.

Thus, we can conclude that GH and HI are the same length.

Since we know the following:

GH = 4v - 75

HI = v

We can set GH and HI equal to each other and solve the equation.

4v - 75 = v

Subtract v from both sides:

3v - 75 = 0

Add 75 to both sides:

3v = 75

Divide both sides by 3:

v = 25

Answer: v = 25

5 0
3 years ago
Read 2 more answers
Jonathan worked at McDonalds 20 hours per week and earned $195. Use the equation 20h=195 to find Jonathan's hourly wage.
77julia77 [94]
9.75

Just divide 195 by 20. You’d get 9.75 as an answer.
3 0
3 years ago
Read 2 more answers
Unit 2 Lesson 13 - Let's Go Shopping Activity
Sholpan [36]

Answer:

After discount: $829.49. Savings is $355.50

Step-by-step explanation:

We are going to use a GE Dishwasher. The price listed is: $1184.99. If you had a 30% off coupon, The price after the discount is: $829.49. You would save $355.50

Multiply 1184.99 by .30 this will give you savings

Next subtract the savings 1184.99 - 355.50= 829.49.

4 0
3 years ago
Other questions:
  • A perimeter of a rectangle is 400 yards what are the dimensions of the rectangle if the length is 70 yards more than the width.
    8·1 answer
  • Gabe can now 2 1/2 acres oflawn in 1 day.how many acres of lawn can he now in 2 1/3 days?
    9·1 answer
  • A two-word phrase in a word problem that means to add.
    14·2 answers
  • How many ways are there to split 12 people into 3 teams, where each team has 4 people?
    7·2 answers
  • A 9-member teams plans to run a 4 mile race distance markers are placed on the racecourse every 0.25 mile.
    15·1 answer
  • The chart below contains the results of a survey in which students were asked about their cell phone plan.
    10·2 answers
  • Gavin has 16 blue marbles and 8 white ones. If he wants to place them in identical groups
    9·1 answer
  • Find the measure of each angle indicated (quadrilaterals)
    8·1 answer
  • Can someone help me , with math thanks
    13·2 answers
  • in Aprils DVD collection she has 8 action dvds 12 comedy DVDs 7 romance DVDs what percent of April's DVD collection are comedies
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!