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sattari [20]
3 years ago
5

Sierra drove 130 miles in 2 hours, stopped for 15

Mathematics
1 answer:
sergij07 [2.7K]3 years ago
6 0

Answer:

78.26

Step-by-step explanation:

130+50= 180

.45-.15+2=2.3

180/2.3=78.26

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PLEASE HELP <br> WHAT ARE THE coordinates for the center of the hyperbola??
solong [7]

Answer:

The coordinates of the center of the hyperbola are (1,-3)

Step-by-step explanation:

Equation of a hyperbola:

The equation of a hyperbola with center (x_0,y_0) is given by:

\frac{(x - x_0)^2}{a^2} - \frac{(y - y_0)^2}{b^2} = 1

In this question, we have that:

-x_0 = -1 \rightarrow x_0 = 1

-y_0 = 3 \rightarrow y_0 = -3

The coordinates of the center of the hyperbola are (1,-3)

3 0
3 years ago
Solve the equation: c + 4c = -90
Liono4ka [1.6K]

Answer:

c= -18

Step-by-step explanation:

c+4c= -90

combine like terms

5c= -90

Divide by 5 on both sides

c= -18

6 0
2 years ago
Read 2 more answers
Solve 2x+2&gt;10 i need to know what this is?
mrs_skeptik [129]

Answer:

x>4

Step-by-step explanation:

2x + 2 > 10 \\ 2x > 10 - 2 \\ 2x > 8 \\ x > 4

Sorry if there is any mistakes

6 0
3 years ago
Estimate the sum 8/10 + 1/9
RideAnS [48]

Answer:

41/45

Step by Step Explanation:

Add: 8/

10

+ 1/

9

= 8 · 9/

10 · 9

+ 1 · 10/

9 · 10

= 72/

90

+ 10/

90

= 72 + 10/

90

= 82/

90

= 2 · 41/

2 · 45

= 41/

45

For adding, subtracting, and comparing fractions, it is suitable to adjust both fractions to a common (equal, identical) denominator. The common denominator you can calculate as the least common multiple of both denominators - LCM(10, 9) = 90. In practice, it is enough to find the common denominator (not necessarily the lowest) by multiplying the denominators: 10 × 9 = 90. In the following intermediate step, cancel by a common factor of 2 gives 41/

45

.

In other words - eight tenths plus one ninth = forty-one forty-fifths.

8 0
2 years ago
On a map, 3 cm represents 35 miles. What is the actual distance if two cities are 6.5 cm apart on the map?
Lina20 [59]

Answer:

75 miles

Step-by-step explanation:

35 times 2= is 70

so 6 cm is 70

plus 5 for the .5

so 70+5= 75

6 0
3 years ago
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