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
maw [93]
3 years ago
11

The solution to #68 and #70

Mathematics
1 answer:
atroni [7]3 years ago
8 0
The trick is to write appropriate equations and then solve the system of equations you've created.

"sum of two numbers is -5:"  x + y = -5

"difference                   is  -1:"  x-y = -1

Add these two equations together.  This will cause y to drop out, and you will be left with an equation in x alone:

2x  = - 6, so x = -3.  Subst. -3 for x in either equation, above, and find the corresponding y value.

Then write your solution as (-3, y ) (write in your value for y).
You might be interested in
An icosahedron has twelve faces, the most of any Platonic solid.
jolli1 [7]

Answer:

Step-by-step explanation:

True

3 0
3 years ago
Given in the figure below, find the values of X and Z.
sweet-ann [11.9K]

Answer:

\boxed{x=9}\\\boxed{z=76}

Step-by-step explanation:

Hello There!

<u>Geometry</u>

The angles shown represented by the expressions (11x + 5) and (5x+59) are vertical angles

Vertical angles are congruent so we can use this equation to solve for x

<u>Basic Algebra</u>

11x + 5 = 5x + 59

step 1 subtract 5x from each side

5x - 5x cancels out

11x - 5x = 6x

now we have 6x + 5 = 59

step 2 subtract each side by 5

5 - 5 cancels out

59 - 5 = 54

now we have 54 = 6x

step 3 divide each side by 6

6x/6=x

54/6=9

we're left with x = 9

now we want to plug in 9 into x for one of the expression

11(9) +  5

11 * 9 = 99

99 + 5 = 104

so we can conclude that the measure of the angle labeled ( 11x + 5 ) is 104 degrees

Now we need to find z

<u>Geometry</u>

The angle with a measure of 104 and angle Z are supplementary angles meaning that the sum of the two is 180

So to find z we subtract the known angle (104) from 180

180 - 104 = 76

so we can conclude that z = 76

5 0
2 years ago
If d(4)= 68. thus, joe travels 68 mi in 4 hours. then how much mi does joe travel in 45 minutes
zhuklara [117]

Given that, Joe travels 68 mi in 4 hours, the number of miles Joe will travel in 45 minutes is 12.75.

<h3>How many miles did joe travel in 45 minutes?</h3>

Given that;

  • Joe travels 68 miles in 4 hours
  • joe travel x miles in 45 minutes

First, we convert 4 hours to minutes: 4 × 60 = 240 minutes

Now,

Joe travels 68 miles in 240 minutes

Joe will travel x miles in 45 minutes

We have;

x × 240 = 68 × 45

x × 240 = 3060

x = 3060 / 240

x = 12.75 miles.

Given that, Joe travels 68 mi in 4 hours, the number of miles Joe will travel in 45 minutes is 12.75.

Learn more word problems here: brainly.com/question/14539651

#SPJ1

3 0
2 years ago
A and b share the cost in a ratio of 3:2. the cost is £85 how much does A pay?
Rufina [12.5K]
A pays 3/5 x 85 = £51,-
b pays 2/5 x 85= £34,-
So the answer is £51,-
8 0
3 years ago
98 - 5q for q = 7 help
Molodets [167]

you have to multiply the 5 and the 7 and you get 35 then subtract 98 and 35 and you get 63

3 0
3 years ago
Read 2 more answers
Other questions:
  • Right now the number 33 and 89 to estimate their sum
    5·1 answer
  • A certain number added to its square is 30. Find the number
    10·1 answer
  • the captain of a boat knows that the lighthouse on the coast is 200 feet tall. he measures the angle of elevation to the top of
    9·1 answer
  • Help me please! All questions answer. Step by step explain it please....!!!
    13·1 answer
  • Mr. Jensen is a salesperson for an insurance company. His monthly paycheck includes a base salary of $2,175 and a commission of
    5·1 answer
  • PLEASE HELP MEEE <br> Can someone calculate the area of this shape
    5·1 answer
  • 5) A book is sold at $152.50 and a discount of 9% is given for students.
    11·1 answer
  • How do I compare 4/6 and 1/3 using benchmark fractions?
    15·1 answer
  • If you answer this you will get brainless
    14·2 answers
  • All of the quadrilaterals in the shape below are squares. Find the area of the shaded
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!