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Alexus [3.1K]
3 years ago
13

paleontologist have put together bones to make a T-Rex skull that has a mass of 600 pounds. They just found a new tooth fossil t

o add to the skull that has a mass of 40 ounces. How many pounds is the T-Rex skull with the new tooth?
Mathematics
2 answers:
Alex Ar [27]3 years ago
7 0

Answer:

602 1/2

Step-by-step explanation:

Ulleksa [173]3 years ago
6 0
16 ounces = 1 pound
meaning 2.5 pounds is added to the skull, 602.5 pounds.
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A customer went to a garden shop and bought some potting soil for 12.50 and 5 shrubs.The total bill was 62.50. Write and solve a
lana66690 [7]
The answer is 10.00

s - the price of one shrub
p - the price of potting soil
p = 12.50

<span>The total bill for 1 potting soil and 5 shrubs was 62.50:
p + 5s = 62.50
12.50 + 5s = 62.50
5s = 62.50 - 12.50
5s = 50.00
s = 50.00 : 5
s = 10.00</span>
6 0
3 years ago
A store sells 12-packs of ballpoint pens for $1.09 each and composition books for $2.79 each. Cindy buys m packs of ballpoint pe
pogonyaev
A 5% discount indicates that her total purchase amount will be decreased by 5%. Paying full price could be shown as 1.00, so we must subtract 0.05 from the full price to represent the discounted total (1.00-0.05 = 0.95).
Only one choice, D, contains this multiplier so we can be certain of this answer. 


3 0
3 years ago
Write two expressions that are equivalent to the expression below.<br> (9-0) + (9-c) + (9-c) + (9-C)
Nikolay [14]

Step-by-step explanation:

4(9 - c) \\  36 - 4c \\  an \: example \: of \: two \: equivalent \\ expression \: includes \:  \\ the \: general \: experssion \: \\   and \: then \: the \: one \: that \: \\  the \: one \: that \: is \: factured

4 0
3 years ago
Math help @LIEMONDER
klio [65]
First picture)
I: 5x+2y=-4
II: -3x+2y=12

add I+(-1*II):
5x+2y-(-3x+2y)=-4-12
8x=-16
x=-2

insert x=-2 into I:
5*(-2)+2y=-4
-10+2y=-4
2y=6
y=3

(-2,3)

question 6)
I: totalcost=115=3*childs+5*adults
II: 33=adults+childs
33-adults=childs

insert childs into I:
115=3*(33-adults)+5*adults
115=99-3*adults+5*adults
16=2*adults
8=adults

insert adults into II:
33-8=childs
25=childs

so it's the last option

question 7)
a) y<6 and y>2 can also be written as 2<y<6, so solution 3 exist for example
b) y>6 and y>2 can also be written as 2<6<y, so solution 7 exist for example
c) y<6 and y<2 inverse of b: y<2<6, so for example 1
d) y>6 and y<2: y<2<6<y, this is impossible as y can be only either bigger or smaller than 2 or 6

so it's the last option

question 8)
I: x+y=12
II: x-y=6

subtract: I-II:
x+y-(x-y)=12-6
2y=6
y=3

insert y into I:
x+3=12
x=9

(9,3)

question 9)
I: x+y=6
II: x=y+5

if you take the x=y+5 definition of II and substitute it into I:
(y+5)+y=6

which is the second option :)
5 0
3 years ago
80 - [50 - {20 ÷ 2 – (16 - 2÷ 2) ÷ 3}]
ohaa [14]

80 - [50 - {20/2 - (16 - 2/2) ÷ 3}]

80 - [50 - {20/2 - (15) ÷ 3}]

80 - [50 - {10 - 5}]

80 - [50 - {5}]

80 - [45]

35

4 0
2 years ago
Read 2 more answers
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