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
bija089 [108]
2 years ago
15

7th grade help me please :))

Mathematics
1 answer:
goldfiish [28.3K]2 years ago
7 0

Answer:

-1/2 is the work

Step-by-step explanation:

hope this helped

You might be interested in
Pierce is making a rectangular frame for a photo collage that has a perimeter of 72.2 72.2 inches. The length of the frame is 20
Allushta [10]

Answer:

P = 2x+2y   (1)

And we know that the lenght is y = 20.3. If we solve for x from equation (1) we got:

P-2y = 2x

\frac{P-2y}{2} =x

And replacing we got:

x = \frac{72.2 in -2*20.3 in}{2}= 15.8 in

And the width for this case would be 15.8 in

Step-by-step explanation:

For this case we know that the photo is rectangular. Let's define:

x = the width,  y= the length

And we know that the perimeter is given by:

P = 2x+2y   (1)

And we know that the lenght is y = 20.3. If we solve for x from equation (1) we got:

P-2y = 2x

\frac{P-2y}{2} =x

And replacing we got:

x = \frac{72.2 in -2*20.3 in}{2}= 15.8 in

And the width for this case would be 15.8 in

4 0
3 years ago
A loaf of bread is 1 1/2 feet long. How many 3 inch pieces can be cut from the loaf?
Olenka [21]
1 1/2 feet= 18 inches
18 inches/3 = 6
6 0
2 years ago
If sine theta equals three over four, what are the values of cos θ and tan θ?
ratelena [41]

Answer:

In words, Cosine theta equals plus or minus square root of seven over 4,tangent theta equals plus or minus  three over root seven

Step-by-step explanation:

Given that sin ∅ =3/4 It means the ratio of the opposite side to the hypotenuse side is 3:4.

Using the Pythagoras theorem we can calculate the hypotenuse adjacent as follows.

a²+b²=c²

a²=c²-b²

a²=4²-3²

a²=16-9

a²=7

a=√7

Then Cos ∅= opposite/ adjacent

=√7/4

Then Tan ∅ = opposite/adjacent

=3/√7

In words, Cosine theta equals plus or minus square root of seven over 4,tangent theta equals plus or minus  three over root seven.

7 0
3 years ago
Raul is building a house. On day 1, he uses 3 bags of cement. On each of the following 3 days, he uses 3 times the number of bag
Ksivusya [100]
18bags 
Look if 1=3 2=9 3= 18  so he uses 18 bags!
8 0
3 years ago
Can anyone help me with number 10??
Galina-37 [17]

Answer:

y=−4/3x+10

Step-by-step explanation:

Find the negative reciprocal of the slope of the original line and use the slope-intercept form  y=mx+b to find the line perpendicular to  3x−4y=−2.

4 0
3 years ago
Other questions:
  • 1) Sam has 128 marbles . How many hundreds are in this number?
    7·2 answers
  • Help me plz with this
    5·1 answer
  • In which quadrant is the point (5,4) found
    10·1 answer
  • P= $25,000 r=0.5% t=6 Months find the interest rate
    9·1 answer
  • What is the absolute value of -5 3/5
    8·1 answer
  • What are the solutions of the equation x4 + 95x2 – 500 = 0?
    10·1 answer
  • 100 PIONTS!!!!!!
    11·2 answers
  • Helppp I will make you a brainlist!! <br><br> A=[4 6 5 ] , then what is 2A? <br> 6 10 7
    11·1 answer
  • A plumber charges customers $45 for a service call plus $60 per hour of repair. The expression below can be used to determine th
    7·1 answer
  • Can someone pls help me
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!