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artcher [175]
1 year ago
14

4. What is 54 + (-78) - (-39)

Mathematics
1 answer:
inysia [295]1 year ago
5 0

Answer:

Step-by-step explanation:

follow the Pemdas order of operations

add and subtract (left to right)

apply the rule +(-a)=-a

+(-78)=-78

=54-78-(-39)

54-78=-24

=-24-(-39)

apply the rule -(-a)=+a

-(-39) =+39

=-24 +39

-24+39=15

=15

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PLZ HELP PLZ PLZ HELP
Dmitrij [34]

2-1.75=.25

.25/2=.125/1

.125 is the answer

3 0
2 years ago
In Aunt Melly’s attics there are spiders and ants, the total of 152 legs and 22 heads. How many spiders and how many ants?
Karolina [17]
152+22 =372 i think it is that answer
6 0
2 years ago
Ashley makes house calls. For each she is payed a base amount and makes additional money for each hour she works. The graph belo
Zarrin [17]

Answer:

her pay increases by 30$ each hour she work

Step-by-step explanation:

hope it helps

3 0
2 years ago
Frank is making a pennant in the shape of a triangle for his senior class photo. He wants the base length of this triangle to be
Sav [38]

Answer:

Height should be ≤ 9 inches.

Step-by-step explanation:

Given:

Frank is making a pennant in the shape of a triangle for his senior class photo.

Base of triangle = 6 in

Area of triangle ≤ 27 in^2

Let height of the triangle be h

Now we now that,

Area of triangle = \frac{1}{2}\times base \times height

\frac{1}{2}\times 6 \times h \leq 27\\\\3h\leq 27\\\\h\leq \frac{27}{3}\\\\h\leq 9 \ in.

Hence the height of the triangle must be at most or ≤ 9 inches.

5 0
2 years ago
Max went to the store and bought 22 apples. He bought twice as many red apples as he did green, and he bought one-third many yel
katrin [286]

Let the number of green apples bought be x


Green apples = x

Red apples = 2x

Yellow apples = 1/3 (2x) = 2/3 x


Total = 22 apples

x + 2x + 2/3 x = 22

11/3 x = 22

11x = 66

x = 6


Green apples = x = 6

Red apples = 2x = 2(6) = 12

Yellow apples = 2/3 (2x) = 2/3 (6) = 4


Answer: Green = 6, Red = 12, Yellow = 4

7 0
3 years ago
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