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Fudgin [204]
2 years ago
8

Please help this is due soon and I'm struggling!

Mathematics
2 answers:
Len [333]2 years ago
8 0

1)

a. 4

b. 9

c. -7

d. -23

2)

a. F

b. F

c. T

d. F

3)

a. 100 -66 =34

b. 78 x 3 = 234

c. 36 + 24 = 60

d. 4 x 17 x 3 = 204

21)

a. -9 + (-12)

= - 9 - 12

= - 21

b. -17 + (3)

= -17 + 3

= - 14

c. 24 + ( -11 )

= 24 - 11

= 13

d. - 15 + (-10)

= - 15 - 10

= - 25

e. - 63 + ( -42) + 8

= - 63 - 42 + 8

= - 97

f. 101 + ( -11 ) + ( -100 )

= 101 -11 - 100

= - 10

dangina [55]2 years ago
5 0
1. a. 4; b. 9; c. -7; d. -23; e. 68
2. a. false; b. true; c. true; d. false
3. a. 34; b. 234; c. 60; d. 84
4. 12,480
5. 6,420
6. a. 62; b. 1; c. 0; d. 27
7. (a) -17+(+17)=0
8. a. -9; b. -17; c. -5; d. 9
9. 3,940
10. 13 degrees fahrenheit
11. -4 degrees fahrenheit
12. a. c and f; b. package e; c. package j
13. a. -25; b. -7; c. 14; d. 3; e. -26; f. -17
14. -67
15. (c) 31
16. (c) 9,000
17. (a) 2,740
18. (c) 3
19. 825
20. a. march; b. december
21. a. -21; b. -14; c. 13; d. -25; e. -97; f. -8
22. -18
23. a. >; b. <; c. >; d. <
24. a. -8; b. 0; c. 1; d. 6; e. -1
25. (d) 9,023
26. a. 15; b. -15; c. 23; d. -10
27. -5
28. 7
29. (b) 7,000,000
30. (b) 7,000
31. (d) 24
32. 3,250
33. $1,000
34. (c) 18
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John has $6.10 in quarters and nickels in his pocket. If John has 34 coins in his pocket, how many of the coins are quarters?
Luden [163]
34 = q + n
6.1 = .25q + .05n

-1.7 = -.05q - .05n
6.1 = .25q + .05n

4.4 = .2q
q = 22

22 of the coins are quarters.
7 0
3 years ago
PLEASE HELP!!! I REALLY NEED SOMEONE TO ANSWER THIS I HAVE ATTACHED A PICTURE
earnstyle [38]

Answer:

2.3 hours, or 2 hours & 18 minutes

Step-by-step explanation:

we are trying to find h when d is 56.68, so I replaced d with 56.68

56.68=24.6h+0.1\\

subtract 0.1 from both sides

56.58=24.6h

divide both sides by 24.6

2.3=h

7 0
3 years ago
Find the midpoint of AB for: A(7,0)|and B(0,3)​
liberstina [14]

Answer:

\boxed {\boxed {\sf (\frac {7}{2}, \frac{3}{2}) \ or \ (3,5, 1.5) }}

Step-by-step explanation:

The midpoint is essentially a point with the average of the 2 x-coordinates and the 2 y-coordinates.

The formula is:

(\frac {x_1+x_2}{2}, \frac{y_1+y_2}{2})

We are given two points: A (7,0) and B (0, 3). Remember points are written as (x, y).

Therefore,

x_1= 7 \\y_1=0 \\x_2=0 \\x_2=3

Substitute the values into the formula.

(\frac {7+0}{2}, \frac{0+3}{2})

Solve the numerators first.

(\frac {7}{2}, \frac{3}{2})

The midpoint can be left like this because the fractions are reduced, but it can be written as decimals too.

(3.5, 1.5)

3 0
3 years ago
a trader has 47,500 rupees with him. he placed an order for 22 items each costing rs. 1263. after making the payment for this pu
djverab [1.8K]

Answer:

since each item costs rs1263 we say

rs1263×22

27786

this means he spent rs27786

Her we now say rs47500-rs27786

=rs19714

This is to say that he has rs19714 left with him.

7 0
3 years ago
Read 2 more answers
A rectangular auditorium seats 1302 people. The number of seats in each row exceeds the number of rows by 11. Find the number of
sveticcg [70]
Number of seats = 42

Seats per row x row = 1302
s x r = 1302

rows + 11 = seats per row
r + 11 = s

s x r = 1302
(r + 11) x r = 1302
r^2 + 11r = 1302
r^2 + 11r - 1302 = 0
(r + 42) x (r - 31) = 0
r = -43 or 31

Cannot have negative rows so the number of rows is 31, and the number of seats per row is 31 + 11 = 42

Check: 31 x 42 = 1302 :)
8 0
2 years ago
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