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Wewaii [24]
3 years ago
9

Find the sum. (5-21) + (-7+81)

Mathematics
2 answers:
sergij07 [2.7K]3 years ago
6 0
58

First solve what is inside the parentheses (PEMDAS)

(5-21)+(-7+81)
(-16)+(74)
Add
58

Hope this helps! :)
Rom4ik [11]3 years ago
4 0

Answer:

58

Step-by-step explanation:

(5-21) is -16 and (-7+81) is 74,so 74+-16 is 58

Mark me brainliest if this helped:D

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A college is currently accepting students that are both in-state and out-of-state. They plan to accept three times as many in-st
densk [106]

Answer:

\[y < = 300\]

Step-by-step explanation:

Let x = number of out-of-state students at the college

Let y = number of in-state students at the college

As per the given problem, the constraints are as follows:

\[x < = 100\]    --------- (1)

\[y = 3 * x\]      --------- (2)

From the given equations (2), \[ x = y/3 \]

Substituting in (1):

\[y/3 < = 100\]

Or, \[y < = 300\] which is the constraint representing the incoming students.

7 0
3 years ago
Read 2 more answers
The scientist creates an equation that models her data for each tree so that she can predict the diameter in the future. Complet
otez555 [7]

Answer:

y = 0.3X + 18.3

Step-by-step explanation:

Given that data :

x = year ;

y = trunk diameter, in inches

Year ________trunk diameter

1 __ 18.6

3 __ 19.2

5 __ 19.8

7 __ 20.4

9 ___21.0

11 __ 21.6

13 __ 22.2

Using the linear regression calculator :

The linear equation obtained is :

y = 0.3X + 18.3

Where ;

Slope = 0.3 ; intercept, c = 18.3

8 0
3 years ago
Please help will mark BRAINLIEST!!!
stiks02 [169]

Answer:

b, c, a

Step-by-step explanation:

In a triangle, the largest angle is opposite the longest side. The smallest angle is opposite the shortest side.

This triangle has 2 given angles, 50° and 60°.

We can find the measure of the third angle, x.

50 + 60 + x = 180

x + 110 = 180

x = 70

The three angles have measures 50°, 60°, and 70°.

The shortest side is opposite the smallest angle. That is side a.

The longest side is opposite the largest angle. That is side b.

The order from longest to shortest is

b, c, a

6 0
3 years ago
Please help with 3! i don’t know how to graph it or work it out
saveliy_v [14]
It would be like this , this is how you would graph it

8 0
3 years ago
Pls help I need it done tonight
Ksenya-84 [330]

Answer:

ABD= 58

BDC= 32

Step-by-step explanation:

complementary = 2 angles equal 90 degrees.

8y+2=90

Subtract 2 both sides.

8y=88

y=11

That's not all, put y into the equations.

ABD

5(11)+3

Multiply

55+3=58

BDC

3(11)-1

MULTIPLY

33-1

SUBTRACT

32

4 0
3 years ago
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