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3 years ago

If 9 x 0 + 4 = 4 had parenthesis where would they go?

Mathematics

2 answers:

Bingel [31]3 years ago

5 0

Answer:

(9 x 0) + 4=4

Step-by-step explanation:

Lady bird [3.3K]3 years ago

4 0

Answer:

(9 · 0) + 4 = 4

Explanation:

The outcome of the equation must be 4

9 · (0 + 4) would not work because the outcome is 36, not 4

(9 · 0) + 4 is the only option

9 · 0 = 0

0 + 4 = 4

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On a trip, Duke encounters some road construction that slows him down. While he is able to go 60 mph on the highway and 40 mph t

natulia [17]

Answer:

Time taken by Duke on the highway = 3 hours

Time spent on the construction = 6 hours

Time spent in the city = 2 hours

Step-by-step explanation:

Speed by which Duke travels a distance on highway $d_1$ = 60 mph

Let the time taken to travel on highway = $t_1$ hours

Distance traveled = $60t_1$ miles

Speed in the city = 40 mph

Let the time taken = $t_2$ hours

Distance traveled in the city = $40t_2$ miles

Speed on the construction = 20 mph

Let the time spend on the construction = $t_3$ hours

Distance traveled on the construction = $20t_3$ miles

Since, total distance covered = 380 miles

$d_1+d_2+d_3=60t_1+40t_2+20t_3$

He spends one half the time on the highway as he does on the construction,

$t_3=2t_1$

Total time spent in the trip = 11 hours

Therefore, $t_1+t_2+t_3=11$

$t_1+t_2+2t_1=11$

$t_2=11-3t_1$

From equation (1),

$60t_1+40(11-3t_1)+20(2t_1)=380$

$60t_1-120t_1+40t_1+440=380$

$440-20t_1=380$

$20t_1=440-380$

$t_1=\frac{60}{20}$

$t_1=3$ hours

$t_2=11-3t_1=2$ hours

$t_3=2t_1=6$ hours

Therefore, time taken by Duke on the highway = 3 hours

Time spent on the construction = 6 hours

Time spent in the city = 2 hours

3 0

3 years ago

Consider the number line of x > 28 which numbers are solutions of the inequality

Gelneren [198K]

Answer:

D and E because they are bigger than 28. C is 28 but there isn't a greater OR EQUAL sign next to it

8 0

3 years ago

Add or subtract as indicated and write the result in standard form 3i+(-6-i)

yKpoI14uk [10]

Answer:

B: -6+2i

Step-by-step explanation:

3i + (-6 - i) = ⇒ open parenthesis
3i - 6 - i = ⇒ simplify
-6 + 2i ⇒ answer in standard form of a+bi

5 0

3 years ago

Solve the equation 3b=42

SIZIF [17.4K]

Answer:

b=14

Step-by-step explanation:

42 divided by 3 is 14

5 0

3 years ago

Read 2 more answers

Leila and jo are two of the partners in a business. Leila makes $3 in profits for every $4 that jo makes. If jo makes $60 profit

Aleonysh [2.5K]

Let

x-------> Leila 's profit

y------> Jo's profit

we know that

$\frac{x}{y} =\frac{3}{4}$ ----------> equation $1$

For $y=\$60$

<u>Find the value of x</u>

Substitute the value of y in the equation $1$

$\frac{x}{60} =\frac{3}{4}$

$x=60*\frac{3}{4}$

$x=\$45$

therefore

<u>the answer is</u>

Leila make $\$45$ in profit

5 0

3 years ago

Read 2 more answers