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
White raven [17]
3 years ago
6

What is the value of -3 + 4.5 - (- 1.2)

Mathematics
1 answer:
kari74 [83]3 years ago
7 0
The answer to your question is 13.5
You might be interested in
What is the side length of a square with an area of 144x^2
a_sh-v [17]
The answer is 72^2. Hope this helps.
4 0
3 years ago
A four foot tall girl cast a shadow of 6 feet. A shade tree cast a shadow of 24feet. What is the height of the tree?
aleksandr82 [10.1K]
The answer is 16.
the girls shadow is 6 feet, and the trees is 24. you get to 24 by multiplying by 4. so do the same thing for the height. if the girls height is 4, multiply by 4 to get to the trees height. 4x4 is 16.
5 0
2 years ago
16 The perimeter of the pentagon is equal to the perimeter of the square.
STatiana [176]

7x+2

Step-by-step explanation:

add all the sides of the pentagon and make it equal to the perimeter of the square which is 4y

sides of the pentagon are

5x+3

2x+3

7x+4

9x-10

5x+8

28x+8=4y

7x+2 = y

7x+2 = answer

gathmath

gathmathier6961

another way :

in a standardized test you may want to use real numbers

make x equal a prime number like 3

so then the sides are

18

9

25

17

23

=

92

then divide by 4

23

then divide by 3

which is 7 remainder of 2

which is

7x+2

8 0
2 years ago
Melons cost $20 pet Crate, and apples cost $8 per create. an order comes in for a total of 48 crates for $420. what was the numb
Alika [10]

Answer:

The number of melon was 3 and the number of apples was 45.

Step-by-step explanation:

1. Melons cost $20 per crate and apples cost $8 per create. If the total was 48 crates for $420, you can make the following system of equations, where x is the number of melons and y is the number of apples:

\left \{ {{x+y=48} \atop {20x+8y=420}} \right.

2. By applying the Method of substitution, you can solve for y in the first equation and substitute it into the second one to find x. Then, you can substitute the value of x into the first equation to find y:

y=48-x

20x+8(48-x)=420\\20x+384-8x=420\\12x=36\\x=3

3+y=48\\y=45


4 0
3 years ago
Given the equation below, what is the value of 3 + 6(79 – s)?<br> 7= -s+ 82
ss7ja [257]

Answer:

1 expression) 477 - 6s

2 equation) s = 75

Step-by-step explanation:

Also, the first expression is simplified

4 0
3 years ago
Other questions:
  • The area of one rectangle is twice the area of another. What is the ratio of their perimeters
    12·1 answer
  • Hi I tried working back wards on this problem and I can't seem to find answer.
    10·1 answer
  • A nurse in a large university (N ? 30,000) is concerned about students' eye health. She takes a random sample of 75 students who
    13·1 answer
  • X is a natural number and a factor of 18 whats the value of X​
    10·1 answer
  • What is the simplified form of this expression, written in scientific notation?
    7·1 answer
  • Find the value of x.<br> log x 8 = 0.5<br> O A. 4<br> OB. 16<br> C. 32
    12·1 answer
  • A large bookstore took in $4,000,000 in sales last year.
    8·1 answer
  • How many small cubes are needed to make the large figure shown below?
    5·1 answer
  • Which set represents the zeros of the function f(x) = 7x2 – 28x + 21?
    14·1 answer
  • PLEASE DO THIS FOR ME, The populations of six countries are listed in this chart. Add one more country of your choosing and add
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!