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Aleks04 [339]
3 years ago
9

1. 12 – 6 ÷ 2 + 1

Mathematics
2 answers:
n200080 [17]3 years ago
7 0
1. 10           division comes first :)
2. 3        division comes first :)

3. 29            division, then multiplication comes first :)
4. 32         8 x 4 :)

5. $5.00        $10.00 - $5.00 :)

6.  870            48 x 8, then 54 x 9 :)
Glad I could help, and good luck :)

SSSSS [86.1K]3 years ago
6 0
1-4
2- 38/9 = 4.2 ~ 4 - 3= 1
3- 56/7 = 8 + 7*3= 21 + 8= 29
4- 8*4= 32
5- 3+2= 5 then 10 - 5 = 5 bucks for his change
6- 48*8 = 384 and 54 *9 = 486. 486 + 384 = 870 seats in the arena.
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If a hallway measuring 90 feet by 7 feet requires 1/2 a fluid ounce of cleaning solution per square foot, how much cleaning solu
kirill115 [55]
90ft by 7ft gives an area of:
90 x 7 = 630 sq ft

1/2 fl oz is needed for each square foot

630 x 1/2 = 315 fl oz required.
4 0
3 years ago
Select each equation which is equivalent to 60% of 25.
krek1111 [17]

The equation which is equivalent to 60% of 25 are x • 1.6 = 25, 0.6 • 25 = x and x/25=60//100

Percentages can be expressed as decimals or fractions.

Given the expression 60% of 25, this can b expressed as:

  • 60% of 25 = x

where x is the result of the expression.

  • 60/100 * 25 = x

Expressing 60% as a decimal will give;

0.6 of 25  = x

0.6 * 25 = x

From the expression 60/100 * 25 = x, this can also be written as:

25 = 100/60 x

25 = 10/6 x

25 = 1.6x

Hence the equation which is equivalent to 60% of 25 are x • 1.6 = 25, 0.6 • 25 = x and x/25=60//100

Learn more on equation here: brainly.com/question/2972832

5 0
2 years ago
Help please!!!
vaieri [72.5K]
We know that In right angle triangle c^2 = a^2 + b^2.
19^2 = 3^2 + b^2
b = (361 - 9)^1/2 = 18.761663039294
Now for angles
 sin(A) = a/c = 3/19
A = sin{-1}(3/19) = 9.0847202873911
A = 9.0847202873911
sin(B) = b/c = 18.761663039294 / 19
B = sin{-1}(18.761663039294 / 19) = 80.915279712614
B = 80.915279712614

8 0
3 years ago
PLEASE HELP!! Urgent! :((
PSYCHO15rus [73]

Answer:

the angle is 245°

Step-by-step explanation:

that is a pentagon, (a shape with 5 sides)

we know 4 of the angles in the pentagon

the sum of those 4 angles is

58°+100°+112°+25°=295°

to find a shapes total amount of °, the equation is (n-2)x180°

(5-2)x180°

=540°

540°-295°=245°

x=245°

6 0
3 years ago
Solve for I.<br> 12x + 7 &lt; -11<br> AND 5.0 – 8 &gt; 40
OLEGan [10]

Answer:

x<3/2

Step-by-step explanation:

12x+7<-11

12x<-11-7

12x<-18

x<-3/2

8 0
2 years ago
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